13388374720 has 56 divisors (see below), whose sum is σ = 36435511584. Its totient is φ = 4590299136.

The previous prime is 13388374711. The next prime is 13388374723. The reversal of 13388374720 is 2747388331.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (13388374723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2986237 + ... + 2990716.

Almost surely, 2^13388374720 is an apocalyptic number.

13388374720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13388374720 is an abundant number, since it is smaller than the sum of its proper divisors (23047136864).

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

13388374720 is an equidigital number, since it uses as much as digits as its factorization.

13388374720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5976977 (or 5976967 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 13388374720 in words is "thirteen billion, three hundred eighty-eight million, three hundred seventy-four thousand, seven hundred twenty".