13173137917 has 4 divisors (see below), whose sum is σ = 13195130400. Its totient is φ = 13151145436.

The previous prime is 13173137903. The next prime is 13173137953. The reversal of 13173137917 is 71973137131.

13173137917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 13173137917 - 2¹⁵ = 13173105149 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 (13173137977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10995343 + ... + 10996540.

It is an arithmetic number, because the mean of its divisors is an integer number (3298782600).

Almost surely, 2^13173137917 is an apocalyptic number.

It is an amenable number.

13173137917 is a deficient number, since it is larger than the sum of its proper divisors (21992483).

13173137917 is an equidigital number, since it uses as much as digits as its factorization.

13173137917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21992482.

The product of its digits is 83349, while the sum is 43.

The spelling of 13173137917 in words is "thirteen billion, one hundred seventy-three million, one hundred thirty-seven thousand, nine hundred seventeen".