13959808317 has 24 divisors (see below), whose sum is σ = 24817438464. Its totient is φ = 7363414944.

The previous prime is 13959808283. The next prime is 13959808397. The reversal of 13959808317 is 71380895931.

13959808317 is a `hidden beast` number, since 1 + 39 + 598 + 0 + 8 + 3 + 17 = 666.

It is not a de Polignac number, because 13959808317 - 2⁷ = 13959808189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13959808397) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8521653 + ... + 8523290.

It is an arithmetic number, because the mean of its divisors is an integer number (1034059936).

Almost surely, 2^13959808317 is an apocalyptic number.

It is an amenable number.

13959808317 is a deficient number, since it is larger than the sum of its proper divisors (10857630147).

13959808317 is a wasteful number, since it uses less digits than its factorization.

13959808317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17044969 (or 17044966 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 13959808317 in words is "thirteen billion, nine hundred fifty-nine million, eight hundred eight thousand, three hundred seventeen".