13944831628 has 24 divisors (see below), whose sum is σ = 30035022752. Its totient is φ = 5516636544.

The previous prime is 13944831619. The next prime is 13944831683. The reversal of 13944831628 is 82613844931.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19154625 + ... + 19155352.

Almost surely, 2^13944831628 is an apocalyptic number.

It is an amenable number.

13944831628 is an abundant number, since it is smaller than the sum of its proper divisors (16090191124).

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

13944831628 is a wasteful number, since it uses less digits than its factorization.

13944831628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38310001 (or 38309999 counting only the distinct ones).

The product of its digits is 995328, while the sum is 49.

The spelling of 13944831628 in words is "thirteen billion, nine hundred forty-four million, eight hundred thirty-one thousand, six hundred twenty-eight".