13386868331 has 4 divisors (see below), whose sum is σ = 14174331192. Its totient is φ = 12599405472.

The previous prime is 13386868309. The next prime is 13386868337.

It is a happy number.

13386868331 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13386868331 - 2¹⁸ = 13386606187 is a prime.

It is a super-2 number, since 2×13386868331² (a number of 21 digits) contains 22 as substring.

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 13386868331.

It is not an unprimeable number, because it can be changed into a prime (13386868337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393731405 + ... + 393731438.

It is an arithmetic number, because the mean of its divisors is an integer number (3543582798).

Almost surely, 2^13386868331 is an apocalyptic number.

13386868331 is a deficient number, since it is larger than the sum of its proper divisors (787462861).

13386868331 is an equidigital number, since it uses as much as digits as its factorization.

13386868331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787462860.

The product of its digits is 1492992, while the sum is 50.

The spelling of 13386868331 in words is "thirteen billion, three hundred eighty-six million, eight hundred sixty-eight thousand, three hundred thirty-one".