685067735788 has 12 divisors (see below), whose sum is σ = 1240208832240. Its totient is φ = 330722355152.

The previous prime is 685067735783. The next prime is 685067735797. The reversal of 685067735788 is 887537760586.

It is not an unprimeable number, because it can be changed into a prime (685067735783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2952878056 + ... + 2952878287.

It is an arithmetic number, because the mean of its divisors is an integer number (103350736020).

Almost surely, 2^685067735788 is an apocalyptic number.

It is an amenable number.

685067735788 is a deficient number, since it is larger than the sum of its proper divisors (555141096452).

685067735788 is a wasteful number, since it uses less digits than its factorization.

685067735788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5905756376 (or 5905756374 counting only the distinct ones).

The product of its (nonzero) digits is 474163200, while the sum is 70.

The spelling of 685067735788 in words is "six hundred eighty-five billion, sixty-seven million, seven hundred thirty-five thousand, seven hundred eighty-eight".