13509864708 has 24 divisors (see below), whose sum is σ = 33377313312. Its totient is φ = 4238388864.

The previous prime is 13509864679. The next prime is 13509864727. The reversal of 13509864708 is 80746890531.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33112210 + ... + 33112617.

It is an arithmetic number, because the mean of its divisors is an integer number (1390721388).

Almost surely, 2^13509864708 is an apocalyptic number.

It is an amenable number.

13509864708 is an abundant number, since it is smaller than the sum of its proper divisors (19867448604).

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

13509864708 is a wasteful number, since it uses less digits than its factorization.

13509864708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66224851 (or 66224849 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 13509864708 in words is "thirteen billion, five hundred nine million, eight hundred sixty-four thousand, seven hundred eight".