13538099784 has 32 divisors (see below), whose sum is σ = 36922091040. Its totient is φ = 4102454400.

The previous prime is 13538099761. The next prime is 13538099789. The reversal of 13538099784 is 48799083531.

It is not an unprimeable number, because it can be changed into a prime (13538099789) 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, 25640077 + ... + 25640604.

It is an arithmetic number, because the mean of its divisors is an integer number (1153815345).

Almost surely, 2^13538099784 is an apocalyptic number.

It is an amenable number.

13538099784 is an abundant number, since it is smaller than the sum of its proper divisors (23383991256).

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

13538099784 is a wasteful number, since it uses less digits than its factorization.

13538099784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51280701 (or 51280697 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 13538099784 in words is "thirteen billion, five hundred thirty-eight million, ninety-nine thousand, seven hundred eighty-four".