13479507569 has 12 divisors (see below), whose sum is σ = 14840808192. Its totient is φ = 12233843160.

The previous prime is 13479507541. The next prime is 13479507583. The reversal of 13479507569 is 96570597431.

It is not a de Polignac number, because 13479507569 - 2²⁴ = 13462730353 is a prime.

It is a super-2 number, since 2×13479507569² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13479507529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18317 + ... + 165210.

It is an arithmetic number, because the mean of its divisors is an integer number (1236734016).

Almost surely, 2^13479507569 is an apocalyptic number.

It is an amenable number.

13479507569 is a deficient number, since it is larger than the sum of its proper divisors (1361300623).

13479507569 is a wasteful number, since it uses less digits than its factorization.

13479507569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184156 (or 184145 counting only the distinct ones).

The product of its (nonzero) digits is 7144200, while the sum is 56.

The spelling of 13479507569 in words is "thirteen billion, four hundred seventy-nine million, five hundred seven thousand, five hundred sixty-nine".