78712828004 has 24 divisors (see below), whose sum is σ = 142498126848. Its totient is φ = 38004563520.

The previous prime is 78712827971. The next prime is 78712828027. The reversal of 78712828004 is 40082821787.

It is a self number, because there is not a number n which added to its sum of digits gives 78712828004.

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, 628097 + ... + 742920.

It is an arithmetic number, because the mean of its divisors is an integer number (5937421952).

Almost surely, 2^78712828004 is an apocalyptic number.

It is an amenable number.

78712828004 is a deficient number, since it is larger than the sum of its proper divisors (63785298844).

78712828004 is a wasteful number, since it uses less digits than its factorization.

78712828004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371515 (or 1371513 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 47.

The spelling of 78712828004 in words is "seventy-eight billion, seven hundred twelve million, eight hundred twenty-eight thousand, four".