2521713879 has 48 divisors (see below), whose sum is σ = 3909484800. Its totient is φ = 1562803200.

The previous prime is 2521713851. The next prime is 2521713881. The reversal of 2521713879 is 9783171252.

2521713879 is a `hidden beast` number, since 252 + 17 + 1 + 387 + 9 = 666.

It is not a de Polignac number, because 2521713879 - 2⁵ = 2521713847 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521715879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1852159 + ... + 1853519.

It is an arithmetic number, because the mean of its divisors is an integer number (81447600).

Almost surely, 2^2521713879 is an apocalyptic number.

2521713879 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2521713879 is a deficient number, since it is larger than the sum of its proper divisors (1387770921).

2521713879 is a wasteful number, since it uses less digits than its factorization.

2521713879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656 (or 1653 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 2521713879 is about 50216.6693339971. The cubic root of 2521713879 is about 1361.1268556751.

The spelling of 2521713879 in words is "two billion, five hundred twenty-one million, seven hundred thirteen thousand, eight hundred seventy-nine".