715640642604 has 72 divisors (see below), whose sum is σ = 1900133044992. Its totient is φ = 226664143200.

The previous prime is 715640642567. The next prime is 715640642621. The reversal of 715640642604 is 406246046517.

715640642604 is a `hidden beast` number, since 7 + 1 + 564 + 0 + 64 + 26 + 0 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 715640642604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2736894 + ... + 2986949.

It is an arithmetic number, because the mean of its divisors is an integer number (26390736736).

Almost surely, 2^715640642604 is an apocalyptic number.

It is an amenable number.

715640642604 is an abundant number, since it is smaller than the sum of its proper divisors (1184492402388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

715640642604 is a wasteful number, since it uses less digits than its factorization.

715640642604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5724027 (or 5724022 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 715640642604 in words is "seven hundred fifteen billion, six hundred forty million, six hundred forty-two thousand, six hundred four".