78974357624 has 32 divisors (see below), whose sum is σ = 151626816000. Its totient is φ = 38541828192.

The previous prime is 78974357617. The next prime is 78974357669. The reversal of 78974357624 is 42675347987.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415247 + ... + 574785.

It is an arithmetic number, because the mean of its divisors is an integer number (4738338000).

Almost surely, 2^78974357624 is an apocalyptic number.

It is an amenable number.

78974357624 is a deficient number, since it is larger than the sum of its proper divisors (72652458376).

78974357624 is a wasteful number, since it uses less digits than its factorization.

78974357624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161027 (or 161023 counting only the distinct ones).

The product of its digits is 71124480, while the sum is 62.

The spelling of 78974357624 in words is "seventy-eight billion, nine hundred seventy-four million, three hundred fifty-seven thousand, six hundred twenty-four".