13939672858 has 16 divisors (see below), whose sum is σ = 20967892200. Its totient is φ = 6950393856.

The previous prime is 13939672811. The next prime is 13939672897. The reversal of 13939672858 is 85827693931.

It can be written as a sum of positive squares in 4 ways, for example, as 13776421129 + 163251729 = 117373^2 + 12777^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13939672796 and 13939672805.

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, 2217616 + ... + 2223892.

Almost surely, 2^13939672858 is an apocalyptic number.

13939672858 is a deficient number, since it is larger than the sum of its proper divisors (7028219342).

13939672858 is a wasteful number, since it uses less digits than its factorization.

13939672858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9201.

The product of its digits is 19595520, while the sum is 61.

The spelling of 13939672858 in words is "thirteen billion, nine hundred thirty-nine million, six hundred seventy-two thousand, eight hundred fifty-eight".