785705056904 has 16 divisors (see below), whose sum is σ = 1473206415120. Its totient is φ = 392850012880.

The previous prime is 785705056879. The next prime is 785705056919. The reversal of 785705056904 is 409650507587.

It is a self number, because there is not a number n which added to its sum of digits gives 785705056904.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2139359 + ... + 2479569.

It is an arithmetic number, because the mean of its divisors is an integer number (92075400945).

Almost surely, 2^785705056904 is an apocalyptic number.

It is an amenable number.

785705056904 is a deficient number, since it is larger than the sum of its proper divisors (687501358216).

785705056904 is a wasteful number, since it uses less digits than its factorization.

785705056904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628900 (or 628896 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 56.

The spelling of 785705056904 in words is "seven hundred eighty-five billion, seven hundred five million, fifty-six thousand, nine hundred four".