79423654625 has 128 divisors (see below), whose sum is σ = 124078915584. Its totient is φ = 49563360000.

The previous prime is 79423654603. The next prime is 79423654649. The reversal of 79423654625 is 52645632497.

It is a happy number.

It is not a de Polignac number, because 79423654625 - 2¹² = 79423650529 is a prime.

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 127 ways as a sum of consecutive naturals, for example, 38055332 + ... + 38057418.

It is an arithmetic number, because the mean of its divisors is an integer number (969366528).

Almost surely, 2^79423654625 is an apocalyptic number.

It is an amenable number.

79423654625 is a deficient number, since it is larger than the sum of its proper divisors (44655260959).

79423654625 is a wasteful number, since it uses less digits than its factorization.

79423654625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224 (or 2214 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 53.

The spelling of 79423654625 in words is "seventy-nine billion, four hundred twenty-three million, six hundred fifty-four thousand, six hundred twenty-five".