13309470756 has 36 divisors (see below), whose sum is σ = 33762291472. Its totient is φ = 4420810224.

The previous prime is 13309470749. The next prime is 13309470767. The reversal of 13309470756 is 65707490331.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 643006 + ... + 663381.

Almost surely, 2^13309470756 is an apocalyptic number.

It is an amenable number.

13309470756 is an abundant number, since it is smaller than the sum of its proper divisors (20452820716).

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

13309470756 is a wasteful number, since it uses less digits than its factorization.

13309470756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306680 (or 1306675 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 45.

The spelling of 13309470756 in words is "thirteen billion, three hundred nine million, four hundred seventy thousand, seven hundred fifty-six".