685579579464 has 64 divisors (see below), whose sum is σ = 1847062728000. Its totient is φ = 210802242816.

The previous prime is 685579579441. The next prime is 685579579501. The reversal of 685579579464 is 464975975586.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302814 + ... + 1209485.

It is an arithmetic number, because the mean of its divisors is an integer number (28860355125).

Almost surely, 2^685579579464 is an apocalyptic number.

It is an amenable number.

685579579464 is an abundant number, since it is smaller than the sum of its proper divisors (1161483148536).

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

685579579464 is a wasteful number, since it uses less digits than its factorization.

685579579464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513774 (or 1513770 counting only the distinct ones).

The product of its digits is 2286144000, while the sum is 75.

The spelling of 685579579464 in words is "six hundred eighty-five billion, five hundred seventy-nine million, five hundred seventy-nine thousand, four hundred sixty-four".