13983638844 has 48 divisors (see below), whose sum is σ = 38492604416. Its totient is φ = 3866443200.

The previous prime is 13983638843. The next prime is 13983638849. The reversal of 13983638844 is 44883638931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13983638843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2682427 + ... + 2687634.

Almost surely, 2^13983638844 is an apocalyptic number.

13983638844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13983638844 is an abundant number, since it is smaller than the sum of its proper divisors (24508965572).

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

13983638844 is a wasteful number, since it uses less digits than its factorization.

13983638844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5370106 (or 5370104 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 57.

The spelling of 13983638844 in words is "thirteen billion, nine hundred eighty-three million, six hundred thirty-eight thousand, eight hundred forty-four".