11917394013 has 16 divisors (see below), whose sum is σ = 18168606720. Its totient is φ = 6806651376.

The previous prime is 11917393981. The next prime is 11917394017. The reversal of 11917394013 is 31049371911.

It is not a de Polignac number, because 11917394013 - 2⁵ = 11917393981 is a prime.

It is a super-2 number, since 2×11917394013² (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 (11917394017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92133 + ... + 179786.

It is an arithmetic number, because the mean of its divisors is an integer number (1135537920).

Almost surely, 2^11917394013 is an apocalyptic number.

It is an amenable number.

11917394013 is a deficient number, since it is larger than the sum of its proper divisors (6251212707).

11917394013 is a wasteful number, since it uses less digits than its factorization.

11917394013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274016.

The product of its (nonzero) digits is 20412, while the sum is 39.

The spelling of 11917394013 in words is "eleven billion, nine hundred seventeen million, three hundred ninety-four thousand, thirteen".