11697713238 has 16 divisors (see below), whose sum is σ = 24202165680. Its totient is φ = 3764781216.

The previous prime is 11697713213. The next prime is 11697713297. The reversal of 11697713238 is 83231779611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33613945 + ... + 33614292.

It is an arithmetic number, because the mean of its divisors is an integer number (1512635355).

Almost surely, 2^11697713238 is an apocalyptic number.

11697713238 is an abundant number, since it is smaller than the sum of its proper divisors (12504452442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11697713238 is a wasteful number, since it uses less digits than its factorization.

11697713238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67228271.

The product of its digits is 381024, while the sum is 48.

The spelling of 11697713238 in words is "eleven billion, six hundred ninety-seven million, seven hundred thirteen thousand, two hundred thirty-eight".