11697518713 has 8 divisors (see below), whose sum is σ = 11779043400. Its totient is φ = 11616034560.

The previous prime is 11697518681. The next prime is 11697518747. The reversal of 11697518713 is 31781579611.

It can be written as a sum of positive squares in 4 ways, for example, as 1124126784 + 10573391929 = 33528^2 + 102827^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11697518713 - 2⁵ = 11697518681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11697512713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 781843 + ... + 796663.

It is an arithmetic number, because the mean of its divisors is an integer number (1472380425).

Almost surely, 2^11697518713 is an apocalyptic number.

It is an amenable number.

11697518713 is a deficient number, since it is larger than the sum of its proper divisors (81524687).

11697518713 is a wasteful number, since it uses less digits than its factorization.

11697518713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20267.

The product of its digits is 317520, while the sum is 49.

The spelling of 11697518713 in words is "eleven billion, six hundred ninety-seven million, five hundred eighteen thousand, seven hundred thirteen".