13366791234689 has 4 divisors (see below), whose sum is σ = 13366798968624. Its totient is φ = 13366783500756.

The previous prime is 13366791234659. The next prime is 13366791234733. The reversal of 13366791234689 is 98643219766331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13366791234689 - 2¹⁶ = 13366791169153 is a prime.

It is a super-2 number, since 2×13366791234689² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13366791234619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44054 + ... + 5170640.

It is an arithmetic number, because the mean of its divisors is an integer number (3341699742156).

Almost surely, 2^{13366791234689} is an apocalyptic number.

It is an amenable number.

13366791234689 is a deficient number, since it is larger than the sum of its proper divisors (7733935).

13366791234689 is an equidigital number, since it uses as much as digits as its factorization.

13366791234689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7733934.

The product of its digits is 211631616, while the sum is 68.

The spelling of 13366791234689 in words is "thirteen trillion, three hundred sixty-six billion, seven hundred ninety-one million, two hundred thirty-four thousand, six hundred eighty-nine".