79904251525 has 24 divisors (see below), whose sum is σ = 113259528704. Its totient is φ = 54779976000.

The previous prime is 79904251517. The next prime is 79904251541. The reversal of 79904251525 is 52515240997.

It is not a de Polignac number, because 79904251525 - 2³ = 79904251517 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 833575 + ... + 924475.

Almost surely, 2^79904251525 is an apocalyptic number.

It is an amenable number.

79904251525 is a deficient number, since it is larger than the sum of its proper divisors (33355277179).

79904251525 is a wasteful number, since it uses less digits than its factorization.

79904251525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95941 (or 95936 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 49.

The spelling of 79904251525 in words is "seventy-nine billion, nine hundred four million, two hundred fifty-one thousand, five hundred twenty-five".