13549079816 has 32 divisors (see below), whose sum is σ = 26758728000. Its totient is φ = 6413875776.

The previous prime is 13549079783. The next prime is 13549079893. The reversal of 13549079816 is 61897094531.

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, 216530 + ... + 271998.

It is an arithmetic number, because the mean of its divisors is an integer number (836210250).

Almost surely, 2^13549079816 is an apocalyptic number.

It is an amenable number.

13549079816 is a deficient number, since it is larger than the sum of its proper divisors (13209648184).

13549079816 is a wasteful number, since it uses less digits than its factorization.

13549079816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57101 (or 57097 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 13549079816 in words is "thirteen billion, five hundred forty-nine million, seventy-nine thousand, eight hundred sixteen".