680844065204 has 12 divisors (see below), whose sum is σ = 1195873710528. Its totient is φ = 339165862200.

The previous prime is 680844065203. The next prime is 680844065207. The reversal of 680844065204 is 402560448086.

It is a super-2 number, since 2×680844065204² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680844065203) 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, 314041382 + ... + 314043549.

It is an arithmetic number, because the mean of its divisors is an integer number (99656142544).

Almost surely, 2^680844065204 is an apocalyptic number.

It is an amenable number.

680844065204 is a deficient number, since it is larger than the sum of its proper divisors (515029645324).

680844065204 is a wasteful number, since it uses less digits than its factorization.

680844065204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628085206 (or 628085204 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 47.

The spelling of 680844065204 in words is "six hundred eighty billion, eight hundred forty-four million, sixty-five thousand, two hundred four".