12796817664 has 72 divisors (see below), whose sum is σ = 34888970592. Its totient is φ = 4161556480.

The previous prime is 12796817659. The next prime is 12796817681. The reversal of 12796817664 is 46671869721.

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, 171714 + ... + 234689.

It is an arithmetic number, because the mean of its divisors is an integer number (484569036).

Almost surely, 2^12796817664 is an apocalyptic number.

It is an amenable number.

12796817664 is an abundant number, since it is smaller than the sum of its proper divisors (22092152928).

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

12796817664 is an equidigital number, since it uses as much as digits as its factorization.

12796817664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406463 (or 406449 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 57.

The spelling of 12796817664 in words is "twelve billion, seven hundred ninety-six million, eight hundred seventeen thousand, six hundred sixty-four".