12117811468 has 12 divisors (see below), whose sum is σ = 24235622992. Its totient is φ = 5193347760.

The previous prime is 12117811451. The next prime is 12117811481. The reversal of 12117811468 is 86411871121.

12117811468 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 12117811468.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216389463 + ... + 216389518.

Almost surely, 2^12117811468 is an apocalyptic number.

It is an amenable number.

12117811468 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12117811468 is a wasteful number, since it uses less digits than its factorization.

12117811468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432778992 (or 432778990 counting only the distinct ones).

The product of its digits is 21504, while the sum is 40.

The spelling of 12117811468 in words is "twelve billion, one hundred seventeen million, eight hundred eleven thousand, four hundred sixty-eight".