3131390752256 has 40 divisors (see below), whose sum is σ = 6737947483344. Its totient is φ = 1445257267200.

The previous prime is 3131390752249. The next prime is 3131390752277. The reversal of 3131390752256 is 6522570931313.

It is a self number, because there is not a number n which added to its sum of digits gives 3131390752256.

It is a congruent number.

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, 235224020 + ... + 235237331.

Almost surely, 2^{3131390752256} is an apocalyptic number.

It is an amenable number.

3131390752256 is an abundant number, since it is smaller than the sum of its proper divisors (3606556731088).

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

3131390752256 is an equidigital number, since it uses as much as digits as its factorization.

3131390752256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470461382 (or 470461366 counting only the distinct ones).

The product of its (nonzero) digits is 1020600, while the sum is 47.

The spelling of 3131390752256 in words is "three trillion, one hundred thirty-one billion, three hundred ninety million, seven hundred fifty-two thousand, two hundred fifty-six".