13979208345 has 16 divisors (see below), whose sum is σ = 22368982272. Its totient is φ = 7454828160.

The previous prime is 13979208337. The next prime is 13979208361. The reversal of 13979208345 is 54380297931.

It is not a de Polignac number, because 13979208345 - 2³ = 13979208337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128469 + ... + 210861.

It is an arithmetic number, because the mean of its divisors is an integer number (1398061392).

Almost surely, 2^13979208345 is an apocalyptic number.

13979208345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13979208345 is a deficient number, since it is larger than the sum of its proper divisors (8389773927).

13979208345 is a wasteful number, since it uses less digits than its factorization.

13979208345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93712.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 13979208345 in words is "thirteen billion, nine hundred seventy-nine million, two hundred eight thousand, three hundred forty-five".