13939180138 has 16 divisors (see below), whose sum is σ = 22735754496. Its totient is φ = 6371005680.

The previous prime is 13939180081. The next prime is 13939180207. The reversal of 13939180138 is 83108193931.

It is a happy number.

It is a super-2 number, since 2×13939180138² (a number of 21 digits) contains 22 as substring.

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, 2599858 + ... + 2605213.

It is an arithmetic number, because the mean of its divisors is an integer number (1420984656).

Almost surely, 2^13939180138 is an apocalyptic number.

13939180138 is a deficient number, since it is larger than the sum of its proper divisors (8796574358).

13939180138 is a wasteful number, since it uses less digits than its factorization.

13939180138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5205189.

The product of its (nonzero) digits is 139968, while the sum is 46.

The spelling of 13939180138 in words is "thirteen billion, nine hundred thirty-nine million, one hundred eighty thousand, one hundred thirty-eight".