685337952812 has 12 divisors (see below), whose sum is σ = 1203173181336. Its totient is φ = 341574186720.

The previous prime is 685337952797. The next prime is 685337952839. The reversal of 685337952812 is 218259733586.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273696014 + ... + 273698517.

It is an arithmetic number, because the mean of its divisors is an integer number (100264431778).

Almost surely, 2^685337952812 is an apocalyptic number.

It is an amenable number.

685337952812 is a deficient number, since it is larger than the sum of its proper divisors (517835228524).

685337952812 is a wasteful number, since it uses less digits than its factorization.

685337952812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547394848 (or 547394846 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 59.

The spelling of 685337952812 in words is "six hundred eighty-five billion, three hundred thirty-seven million, nine hundred fifty-two thousand, eight hundred twelve".