12789297984 has 28 divisors (see below), whose sum is σ = 33838351424. Its totient is φ = 4263099264.

The previous prime is 12789297967. The next prime is 12789297991. The reversal of 12789297984 is 48979298721.

It is a super-2 number, since 2×12789297984² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33305272 + ... + 33305655.

Almost surely, 2^12789297984 is an apocalyptic number.

It is an amenable number.

12789297984 is an abundant number, since it is smaller than the sum of its proper divisors (21049053440).

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

12789297984 is an equidigital number, since it uses as much as digits as its factorization.

12789297984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66610942 (or 66610932 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 66.

The spelling of 12789297984 in words is "twelve billion, seven hundred eighty-nine million, two hundred ninety-seven thousand, nine hundred eighty-four".