13309090944 has 64 divisors (see below), whose sum is σ = 36889352640. Its totient is φ = 4243475456.

The previous prime is 13309090939. The next prime is 13309090961. The reversal of 13309090944 is 44909090331.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×13309090944² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13309090896 and 13309090905.

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, 744627 + ... + 762290.

It is an arithmetic number, because the mean of its divisors is an integer number (576396135).

Almost surely, 2^13309090944 is an apocalyptic number.

It is an amenable number.

13309090944 is an abundant number, since it is smaller than the sum of its proper divisors (23580261696).

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

13309090944 is a wasteful number, since it uses less digits than its factorization.

13309090944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506957 (or 1506945 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 42.

The spelling of 13309090944 in words is "thirteen billion, three hundred nine million, ninety thousand, nine hundred forty-four".