13931444444 has 24 divisors (see below), whose sum is σ = 26704293840. Its totient is φ = 6329904896.

The previous prime is 13931444437. The next prime is 13931444467. The reversal of 13931444444 is 44444413931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3530342 + ... + 3534285.

It is an arithmetic number, because the mean of its divisors is an integer number (1112678910).

Almost surely, 2^13931444444 is an apocalyptic number.

It is an amenable number.

13931444444 is a deficient number, since it is larger than the sum of its proper divisors (12772849396).

13931444444 is a wasteful number, since it uses less digits than its factorization.

13931444444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7064677 (or 7064675 counting only the distinct ones).

The product of its digits is 331776, while the sum is 41.

The spelling of 13931444444 in words is "thirteen billion, nine hundred thirty-one million, four hundred forty-four thousand, four hundred forty-four".