12018696865 has 16 divisors (see below), whose sum is σ = 16928266752. Its totient is φ = 8018650944.

The previous prime is 12018696857. The next prime is 12018696887. The reversal of 12018696865 is 56869681021.

It is a cyclic number.

It is not a de Polignac number, because 12018696865 - 2³ = 12018696857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4639129 + ... + 4641718.

It is an arithmetic number, because the mean of its divisors is an integer number (1058016672).

Almost surely, 2^12018696865 is an apocalyptic number.

It is an amenable number.

12018696865 is a deficient number, since it is larger than the sum of its proper divisors (4909569887).

12018696865 is an equidigital number, since it uses as much as digits as its factorization.

12018696865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9280896.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 12018696865 in words is "twelve billion, eighteen million, six hundred ninety-six thousand, eight hundred sixty-five".