13959668680 has 16 divisors (see below), whose sum is σ = 31409254620. Its totient is φ = 5583867456.

The previous prime is 13959668629. The next prime is 13959668699. The reversal of 13959668680 is 8686695931.

It can be written as a sum of positive squares in 2 ways, for example, as 13939580356 + 20088324 = 118066^2 + 4482^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174495819 + ... + 174495898.

Almost surely, 2^13959668680 is an apocalyptic number.

13959668680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13959668680 is an abundant number, since it is smaller than the sum of its proper divisors (17449585940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13959668680 is a wasteful number, since it uses less digits than its factorization.

13959668680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348991728 (or 348991724 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 61.

The spelling of 13959668680 in words is "thirteen billion, nine hundred fifty-nine million, six hundred sixty-eight thousand, six hundred eighty".