/**
 * Defines an abstract class with number utilities.
 */
export declare abstract class Numbers {
    /**
     * Contains the max safe integer.
     */
    static readonly MAX_SAFE_INT: number;
    /**
     * Contains the min safe integer.
     */
    static readonly MIN_SAFE_INT: number;
    /**
     * @constructor
     *
     * @private
     */
    private constructor();
    /**
     * Gets the absolute value of the given number.
     *
     * @param {Number} num Contains some number.
     * @return {Number} the absolute value of the given number.
     */
    static abs(num: number): number;
    /**
     * Compares two numbers. Useful for array sorting.
     *
     * @param {Number} a Contains some number.
     * @param {Number} b Contains some other number.
     * @return {Number}
     * * `-1` if `a` is smaller than `b`.
     * * `0`  if `a` equals `b`.
     * * `1`  if `a` is greater than `b`.
     */
    static compare(a: number, b: number): number;
    /**
     * Checks whether the specified value is a `bigint` primitive.
     *
     * @param {*} value Contains some value.
     * @return {Boolean} whether the specified value is a `bigint` primitive.
     */
    static isBigInt(value?: any): value is bigint;
    /**
     * Checks whether the specified value is a `BigInt` object.
     *
     * @param {*} value Contains some value.
     * @return {Boolean} whether the specified value is a `BigInt` object.
     */
    static isBigIntObject(value?: any): value is (typeof BigInt extends undefined ? false : BigInt);
    /**
     * Checks whether the given value is a positive integer.
     *
     * @param {*} value Contains some value.
     * @param {Boolean} safeInt Contains whether the integer should be between
     * `Number.MIN_SAFE_INTEGER` and `Number.MAX_SAFE_INTEGER`. Defaults to
     * `false`.
     * @return {Boolean} whether the given value is an integer.
     */
    static isInteger(value?: any, safeInt?: boolean): value is number;
    /**
     * Checks whether the given value is greater than or equal 0.
     *
     * @param {*} value Contains some value.
     * @param {Boolean} safeInt Contains whether the integer should be between
     * 1 and `Number.MAX_SAFE_INTEGER`. Defaults to
     * `false`.
     * @return {Boolean} whether the given value is a natural number
     * i. e. greater than or equal 0.
     */
    static isNatural(value?: any, safeInt?: boolean): value is number;
    /**
     * Checks whether the specified value equals `NaN`.
     *
     * @param {*} value
     * @return {Boolean} whether the specified value is not a number.
     *
     * @since v1.5.6
     */
    static isNotNumber(value?: any): value is typeof Number.NaN;
    /**
     * Checks whether the given value is a number.
     *
     * @param {*} value Contains some value.
     * @return {Boolean} whether the given value is a number.
     */
    static isNumber(value?: any): value is number;
    /**
     * Checks whether the specified value is an instance of the `Number`
     * object.
     *
     * **Usage Examples:**
     * ```typescript
     * Numbers.isNumberObject(); // false
     * Numbers.isNumberObject(5); // false
     * Numbers.isNumberObject("44"); // false
     * Numbers.isNumberObject(new Number(12)); // true
     * ```
     *
     * @param {*} value Contains some value.
     * @return {Boolean} whether the specified value is an instance
     * of the `Number` object.
     */
    static isNumberObject(value?: any): value is Number;
    /**
     * Checks whether the given value is a positive integer.
     *
     * @param {*} value Contains some value.
     * @param {Boolean} safeInt Contains whether the integer should be between
     * 1 and `Number.MAX_SAFE_INTEGER`. Defaults to
     * `false`.
     * @return {Boolean} whether the given value is a positive integer.
     */
    static isPositiveInteger(value?: any, safeInt?: boolean): value is number;
    /**
     * Checks whether the specified number is a prime number.
     *
     * @param {Number} num Contains some number.
     * @return {Boolean} whether the specified number is a prime number.
     */
    static isPrime(num: number): boolean;
    /**
     * Pads the specified number.
     *
     * @param {Number} num Contains some number.
     * @return {String} a string.
     *
     * @since v1.5.13
     */
    static pad(num: number): string;
    /**
     * Get a random integer in the specified range.
     *
     * @param {Number} min Contains the minimum for the random integer.
     * @param {Number} max Contains the maximum for the random integer.
     * @param {Boolean} incl Contains whether to include `min` and `max`.
     * Defaults to `false`;
     * @return {Number} a random integer in the specified range.
     */
    static randomInt(min: number, max: number, incl?: boolean): number;
    /**
     * Converts the specified number to string.
     *
     * **Usage Examples:**
     * ```typescript
     * Numbers.toString(123); // "123"
     * Numbers.toString(12.3); // "12.3"
     * ```
     *
     * @param {Number} num Contains some number.
     * @return {String} a string.
     */
    static toString(num: number): string;
}