13338217772879 has 4 divisors (see below), whose sum is σ = 13338235673880. Its totient is φ = 13338199871880.

The previous prime is 13338217772827. The next prime is 13338217772909. The reversal of 13338217772879 is 97827771283331.

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 13338217772879 - 2²⁴ = 13338200995663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13338217772809) 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, 7781984 + ... + 9340005.

It is an arithmetic number, because the mean of its divisors is an integer number (3334558918470).

Almost surely, 2^{13338217772879} is an apocalyptic number.

13338217772879 is a deficient number, since it is larger than the sum of its proper divisors (17901001).

13338217772879 is an equidigital number, since it uses as much as digits as its factorization.

13338217772879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17901000.

The product of its digits is 149361408, while the sum is 68.

The spelling of 13338217772879 in words is "thirteen trillion, three hundred thirty-eight billion, two hundred seventeen million, seven hundred seventy-two thousand, eight hundred seventy-nine".