79929144625 has 32 divisors (see below), whose sum is σ = 108851558400. Its totient is φ = 58113376000.

The previous prime is 79929144611. The next prime is 79929144641. The reversal of 79929144625 is 52644192997.

It is not a de Polignac number, because 79929144625 - 2⁷ = 79929144497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79929144625.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6592569 + ... + 6604681.

It is an arithmetic number, because the mean of its divisors is an integer number (3401611200).

Almost surely, 2^79929144625 is an apocalyptic number.

It is an amenable number.

79929144625 is a deficient number, since it is larger than the sum of its proper divisors (28922413775).

79929144625 is a wasteful number, since it uses less digits than its factorization.

79929144625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16938 (or 16928 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 58.

The spelling of 79929144625 in words is "seventy-nine billion, nine hundred twenty-nine million, one hundred forty-four thousand, six hundred twenty-five".