685481184596 has 72 divisors (see below), whose sum is σ = 1380610969920. Its totient is φ = 296814046464.

The previous prime is 685481184593. The next prime is 685481184601. The reversal of 685481184596 is 695481184586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685481184593) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1063856 + ... + 1582008.

It is an arithmetic number, because the mean of its divisors is an integer number (19175152360).

Almost surely, 2^685481184596 is an apocalyptic number.

It is an amenable number.

685481184596 is an abundant number, since it is smaller than the sum of its proper divisors (695129785324).

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

685481184596 is a wasteful number, since it uses less digits than its factorization.

685481184596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518305 (or 518290 counting only the distinct ones).

The product of its digits is 66355200, while the sum is 65.

The spelling of 685481184596 in words is "six hundred eighty-five billion, four hundred eighty-one million, one hundred eighty-four thousand, five hundred ninety-six".