13317756377 has 4 divisors (see below), whose sum is σ = 13326885840. Its totient is φ = 13308626916.

The previous prime is 13317756373. The next prime is 13317756433. The reversal of 13317756377 is 77365771331.

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 an emirpimes, since its reverse is a distinct semiprime: 77365771331 = 3217 ⋅24049043.

It is a cyclic number.

It is not a de Polignac number, because 13317756377 - 2² = 13317756373 is a prime.

It is a super-2 number, since 2×13317756377² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13317756373) 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, 4562543 + ... + 4565460.

It is an arithmetic number, because the mean of its divisors is an integer number (3331721460).

Almost surely, 2^13317756377 is an apocalyptic number.

It is an amenable number.

13317756377 is a deficient number, since it is larger than the sum of its proper divisors (9129463).

13317756377 is an equidigital number, since it uses as much as digits as its factorization.

13317756377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9129462.

The product of its digits is 1944810, while the sum is 50.

The spelling of 13317756377 in words is "thirteen billion, three hundred seventeen million, seven hundred fifty-six thousand, three hundred seventy-seven".