12597317945868 has 24 divisors (see below), whose sum is σ = 30341927096320. Its totient is φ = 4063650950160.

The previous prime is 12597317945827. The next prime is 12597317945873. The reversal of 12597317945868 is 86854971379521.

It is a self number, because there is not a number n which added to its sum of digits gives 12597317945868.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16931878588 + ... + 16931879331.

Almost surely, 2^{12597317945868} is an apocalyptic number.

It is an amenable number.

12597317945868 is an abundant number, since it is smaller than the sum of its proper divisors (17744609150452).

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

12597317945868 is a wasteful number, since it uses less digits than its factorization.

12597317945868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33863757957 (or 33863757955 counting only the distinct ones).

The product of its digits is 914457600, while the sum is 75.

The spelling of 12597317945868 in words is "twelve trillion, five hundred ninety-seven billion, three hundred seventeen million, nine hundred forty-five thousand, eight hundred sixty-eight".