685536038812 has 12 divisors (see below), whose sum is σ = 1262829545320. Its totient is φ = 324727597296.

The previous prime is 685536038713. The next prime is 685536038827. The reversal of 685536038812 is 218830635586.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4510105443 + ... + 4510105594.

Almost surely, 2^685536038812 is an apocalyptic number.

It is an amenable number.

685536038812 is a deficient number, since it is larger than the sum of its proper divisors (577293506508).

685536038812 is a wasteful number, since it uses less digits than its factorization.

685536038812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9020211060 (or 9020211058 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 55.

The spelling of 685536038812 in words is "six hundred eighty-five billion, five hundred thirty-six million, thirty-eight thousand, eight hundred twelve".