13931981758244 has 12 divisors (see below), whose sum is σ = 26597419720368. Its totient is φ = 6332718981000.

The previous prime is 13931981758243. The next prime is 13931981758283. The reversal of 13931981758244 is 44285718913931.

It is not an unprimeable number, because it can be changed into a prime (13931981758243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158317974482 + ... + 158317974569.

It is an arithmetic number, because the mean of its divisors is an integer number (2216451643364).

Almost surely, 2^{13931981758244} is an apocalyptic number.

It is an amenable number.

13931981758244 is a deficient number, since it is larger than the sum of its proper divisors (12665437962124).

13931981758244 is a wasteful number, since it uses less digits than its factorization.

13931981758244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316635949066 (or 316635949064 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 65.

The spelling of 13931981758244 in words is "thirteen trillion, nine hundred thirty-one billion, nine hundred eighty-one million, seven hundred fifty-eight thousand, two hundred forty-four".