685172401184 has 48 divisors (see below), whose sum is σ = 1380592426752. Its totient is φ = 334549087488.

The previous prime is 685172401171. The next prime is 685172401237. The reversal of 685172401184 is 481104271586.

It is a super-2 number, since 2×685172401184² (a number of 24 digits) contains 22 as substring.

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, 6862082 + ... + 6961214.

It is an arithmetic number, because the mean of its divisors is an integer number (28762342224).

Almost surely, 2^685172401184 is an apocalyptic number.

It is an amenable number.

685172401184 is an abundant number, since it is smaller than the sum of its proper divisors (695420025568).

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

685172401184 is a wasteful number, since it uses less digits than its factorization.

685172401184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104209 (or 104201 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 47.

The spelling of 685172401184 in words is "six hundred eighty-five billion, one hundred seventy-two million, four hundred one thousand, one hundred eighty-four".