11717129613 has 32 divisors (see below), whose sum is σ = 18461040640. Its totient is φ = 6468828480.

The previous prime is 11717129561. The next prime is 11717129621. The reversal of 11717129613 is 31692171711.

It is not a de Polignac number, because 11717129613 - 2¹² = 11717125517 is a prime.

It is a super-2 number, since 2×11717129613² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11717129713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 388431 + ... + 417507.

It is an arithmetic number, because the mean of its divisors is an integer number (576907520).

Almost surely, 2^11717129613 is an apocalyptic number.

It is an amenable number.

11717129613 is a deficient number, since it is larger than the sum of its proper divisors (6743911027).

11717129613 is a wasteful number, since it uses less digits than its factorization.

11717129613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29737.

The product of its digits is 15876, while the sum is 39.

The spelling of 11717129613 in words is "eleven billion, seven hundred seventeen million, one hundred twenty-nine thousand, six hundred thirteen".