13979604913 has 4 divisors (see below), whose sum is σ = 14304712048. Its totient is φ = 13654497780.

The previous prime is 13979604869. The next prime is 13979604937. The reversal of 13979604913 is 31940697931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-13979604913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13979604313) 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, 162553503 + ... + 162553588.

It is an arithmetic number, because the mean of its divisors is an integer number (3576178012).

Almost surely, 2^13979604913 is an apocalyptic number.

It is an amenable number.

13979604913 is a deficient number, since it is larger than the sum of its proper divisors (325107135).

13979604913 is an equidigital number, since it uses as much as digits as its factorization.

13979604913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325107134.

The product of its (nonzero) digits is 1102248, while the sum is 52.

The spelling of 13979604913 in words is "thirteen billion, nine hundred seventy-nine million, six hundred four thousand, nine hundred thirteen".