685350003864 has 32 divisors (see below), whose sum is σ = 1713818776320. Its totient is φ = 228390832416.

The previous prime is 685350003857. The next prime is 685350003881. The reversal of 685350003864 is 468300053586.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3603412 + ... + 3788835.

It is an arithmetic number, because the mean of its divisors is an integer number (53556836760).

Almost surely, 2^685350003864 is an apocalyptic number.

It is an amenable number.

685350003864 is an abundant number, since it is smaller than the sum of its proper divisors (1028468772456).

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

685350003864 is a wasteful number, since it uses less digits than its factorization.

685350003864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7396119 (or 7396115 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 685350003864 in words is "six hundred eighty-five billion, three hundred fifty million, three thousand, eight hundred sixty-four".