12317599856772 has 144 divisors (see below), whose sum is σ = 36066289459200. Its totient is φ = 3471892714944.

The previous prime is 12317599856761. The next prime is 12317599856801. The reversal of 12317599856772 is 27765899571321.

It is a happy number.

12317599856772 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 7 + 59 + 9 + 8 + 567 + 7 + 2 = 666.

12317599856772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12317599856772.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5924229 + ... + 7728627.

Almost surely, 2^{12317599856772} is an apocalyptic number.

12317599856772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12317599856772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18033144729600).

12317599856772 is an abundant number, since it is smaller than the sum of its proper divisors (23748689602428).

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

12317599856772 is a wasteful number, since it uses less digits than its factorization.

12317599856772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804782 (or 1804777 counting only the distinct ones).

The product of its digits is 400075200, while the sum is 72.

The spelling of 12317599856772 in words is "twelve trillion, three hundred seventeen billion, five hundred ninety-nine million, eight hundred fifty-six thousand, seven hundred seventy-two".