13593366728 has 12 divisors (see below), whose sum is σ = 25488180945. Its totient is φ = 6796518480.

The previous prime is 13593366679. The next prime is 13593366733. The reversal of 13593366728 is 82766339531.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 11802215044 + 1791151684 = 108638^2 + 42322^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=82442.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13593366728.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 309158 + ... + 350378.

Almost surely, 2^13593366728 is an apocalyptic number.

It is an amenable number.

13593366728 is a deficient number, since it is larger than the sum of its proper divisors (11894814217).

13593366728 is an frugal number, since it uses more digits than its factorization.

13593366728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82448 (or 41223 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 53.

The spelling of 13593366728 in words is "thirteen billion, five hundred ninety-three million, three hundred sixty-six thousand, seven hundred twenty-eight".