12039917568 has 416 divisors, whose sum is σ = 39631334400. Its totient is φ = 3174432768.

The previous prime is 12039917567. The next prime is 12039917579. The reversal of 12039917568 is 86571993021.

It is a self number, because there is not a number n which added to its sum of digits gives 12039917568.

It is not an unprimeable number, because it can be changed into a prime (12039917567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86618043 + ... + 86618181.

Almost surely, 2^12039917568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12039917568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19815667200).

12039917568 is an abundant number, since it is smaller than the sum of its proper divisors (27591416832).

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

12039917568 is a wasteful number, since it uses less digits than its factorization.

12039917568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 51.

The spelling of 12039917568 in words is "twelve billion, thirty-nine million, nine hundred seventeen thousand, five hundred sixty-eight".