685012832372 has 48 divisors (see below), whose sum is σ = 1310562167040. Its totient is φ = 310701081600.

The previous prime is 685012832359. The next prime is 685012832429. The reversal of 685012832372 is 273238210586.

It is a super-2 number, since 2×685012832372² (a number of 24 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 40436288 + ... + 40453224.

It is an arithmetic number, because the mean of its divisors is an integer number (27303378480).

Almost surely, 2^685012832372 is an apocalyptic number.

It is an amenable number.

685012832372 is a deficient number, since it is larger than the sum of its proper divisors (625549334668).

685012832372 is a wasteful number, since it uses less digits than its factorization.

685012832372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18872 (or 18870 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 685012832372 in words is "six hundred eighty-five billion, twelve million, eight hundred thirty-two thousand, three hundred seventy-two".