3115947816256 has 112 divisors (see below), whose sum is σ = 6890850807552. Its totient is φ = 1385799680000.

The previous prime is 3115947816251. The next prime is 3115947816271. The reversal of 3115947816256 is 6526187495113.

It is a self number, because there is not a number n which added to its sum of digits gives 3115947816256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3115947816251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132373320 + ... + 132396856.

Almost surely, 2^{3115947816256} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3115947816256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3445425403776).

3115947816256 is an abundant number, since it is smaller than the sum of its proper divisors (3774902991296).

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

3115947816256 is a wasteful number, since it uses less digits than its factorization.

3115947816256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27608 (or 27598 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 58.

The spelling of 3115947816256 in words is "three trillion, one hundred fifteen billion, nine hundred forty-seven million, eight hundred sixteen thousand, two hundred fifty-six".