397960656756 has 48 divisors (see below), whose sum is σ = 1052635483200. Its totient is φ = 116004724992.

The previous prime is 397960656719. The next prime is 397960656757. The reversal of 397960656756 is 657656069793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397960656757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67129401 + ... + 67135328.

It is an arithmetic number, because the mean of its divisors is an integer number (21929905900).

Almost surely, 2^397960656756 is an apocalyptic number.

It is an amenable number.

397960656756 is an abundant number, since it is smaller than the sum of its proper divisors (654674826444).

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

397960656756 is a wasteful number, since it uses less digits than its factorization.

397960656756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134264768 (or 134264766 counting only the distinct ones).

The product of its (nonzero) digits is 385786800, while the sum is 69.

The spelling of 397960656756 in words is "three hundred ninety-seven billion, nine hundred sixty million, six hundred fifty-six thousand, seven hundred fifty-six".