3156809671312 has 20 divisors (see below), whose sum is σ = 6672347714736. Its totient is φ = 1434913486880.

The previous prime is 3156809671291. The next prime is 3156809671321. The reversal of 3156809671312 is 2131769086513.

It is a self number, because there is not a number n which added to its sum of digits gives 3156809671312.

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, 8968209118 + ... + 8968209469.

Almost surely, 2^{3156809671312} is an apocalyptic number.

It is an amenable number.

3156809671312 is an abundant number, since it is smaller than the sum of its proper divisors (3515538043424).

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

3156809671312 is a wasteful number, since it uses less digits than its factorization.

3156809671312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17936418606 (or 17936418600 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 3156809671312 in words is "three trillion, one hundred fifty-six billion, eight hundred nine million, six hundred seventy-one thousand, three hundred twelve".