13989839256 has 48 divisors (see below), whose sum is σ = 37957280400. Its totient is φ = 4654894272.

The previous prime is 13989839239. The next prime is 13989839261. The reversal of 13989839256 is 65293898931.

It is a junction number, because it is equal to n+sod(n) for n = 13989839193 and 13989839202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134316 + ... + 214523.

It is an arithmetic number, because the mean of its divisors is an integer number (790776675).

Almost surely, 2^13989839256 is an apocalyptic number.

It is an amenable number.

13989839256 is an abundant number, since it is smaller than the sum of its proper divisors (23967441144).

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

13989839256 is a wasteful number, since it uses less digits than its factorization.

13989839256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349408 (or 349401 counting only the distinct ones).

The product of its digits is 25194240, while the sum is 63.

The spelling of 13989839256 in words is "thirteen billion, nine hundred eighty-nine million, eight hundred thirty-nine thousand, two hundred fifty-six".