11913694239 has 16 divisors (see below), whose sum is σ = 16159651200. Its totient is φ = 7805191776.

The previous prime is 11913694217. The next prime is 11913694267. The reversal of 11913694239 is 93249631911.

It is a happy number.

It is not a de Polignac number, because 11913694239 - 2⁵ = 11913694207 is a prime.

It is a super-2 number, since 2×11913694239² (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 (11913692239) 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, 604312 + ... + 623714.

It is an arithmetic number, because the mean of its divisors is an integer number (1009978200).

Almost surely, 2^11913694239 is an apocalyptic number.

11913694239 is a deficient number, since it is larger than the sum of its proper divisors (4245956961).

11913694239 is a wasteful number, since it uses less digits than its factorization.

11913694239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22934.

The product of its digits is 314928, while the sum is 48.

The spelling of 11913694239 in words is "eleven billion, nine hundred thirteen million, six hundred ninety-four thousand, two hundred thirty-nine".