13399827218 has 6 divisors (see below), whose sum is σ = 20099986389. Its totient is φ = 6699831756.

The previous prime is 13399827211. The next prime is 13399827269. The reversal of 13399827218 is 81272899331.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10423797409 + 2976029809 = 102097^2 + 54553^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=81853.

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 13399827218.

It is not an unprimeable number, because it can be changed into a prime (13399827211) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 122780 + ... + 204632.

Almost surely, 2^13399827218 is an apocalyptic number.

13399827218 is a deficient number, since it is larger than the sum of its proper divisors (6700159171).

13399827218 is an frugal number, since it uses more digits than its factorization.

13399827218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163708 (or 81855 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 53.

The spelling of 13399827218 in words is "thirteen billion, three hundred ninety-nine million, eight hundred twenty-seven thousand, two hundred eighteen".