13117644793 has 4 divisors (see below), whose sum is σ = 14310157968. Its totient is φ = 11925131620.

The previous prime is 13117644773. The next prime is 13117644833. The reversal of 13117644793 is 39744671131.

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: 39744671131 = 11 ⋅3613151921.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13117644793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13117644773) 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, 596256571 + ... + 596256592.

It is an arithmetic number, because the mean of its divisors is an integer number (3577539492).

Almost surely, 2^13117644793 is an apocalyptic number.

It is an amenable number.

13117644793 is a deficient number, since it is larger than the sum of its proper divisors (1192513175).

13117644793 is a wasteful number, since it uses less digits than its factorization.

13117644793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192513174.

The product of its digits is 381024, while the sum is 46.

The spelling of 13117644793 in words is "thirteen billion, one hundred seventeen million, six hundred forty-four thousand, seven hundred ninety-three".