13939811256 has 192 divisors, whose sum is σ = 41401234080. Its totient is φ = 3898782720.

The previous prime is 13939811201. The next prime is 13939811267. The reversal of 13939811256 is 65211893931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22740006 + ... + 22740618.

Almost surely, 2^13939811256 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 13939811256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20700617040).

13939811256 is an abundant number, since it is smaller than the sum of its proper divisors (27461422824).

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

13939811256 is a wasteful number, since it uses less digits than its factorization.

13939811256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014 (or 1003 counting only the distinct ones).

The product of its digits is 349920, while the sum is 48.

The spelling of 13939811256 in words is "thirteen billion, nine hundred thirty-nine million, eight hundred eleven thousand, two hundred fifty-six".