13997856942 has 64 divisors (see below), whose sum is σ = 31399526400. Its totient is φ = 4622093280.

The previous prime is 13997856937. The next prime is 13997856953. The reversal of 13997856942 is 24965879931.

It is a self number, because there is not a number n which added to its sum of digits gives 13997856942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6301392 + ... + 6303612.

It is an arithmetic number, because the mean of its divisors is an integer number (490617600).

Almost surely, 2^13997856942 is an apocalyptic number.

13997856942 is an abundant number, since it is smaller than the sum of its proper divisors (17401669458).

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

13997856942 is a wasteful number, since it uses less digits than its factorization.

13997856942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278 (or 3272 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 63.

The spelling of 13997856942 in words is "thirteen billion, nine hundred ninety-seven million, eight hundred fifty-six thousand, nine hundred forty-two".