12872263568 has 20 divisors (see below), whose sum is σ = 25548304908. Its totient is φ = 6279152640.

The previous prime is 12872263567. The next prime is 12872263597. The reversal of 12872263568 is 86536227821.

It can be written as a sum of positive squares in 2 ways, for example, as 6556464784 + 6315798784 = 80972^2 + 79472^2 .

It is not an unprimeable number, because it can be changed into a prime (12872263567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9810521 + ... + 9811832.

Almost surely, 2^12872263568 is an apocalyptic number.

It is an amenable number.

12872263568 is a deficient number, since it is larger than the sum of its proper divisors (12676041340).

12872263568 is a wasteful number, since it uses less digits than its factorization.

12872263568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19622402 (or 19622396 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 50.

The spelling of 12872263568 in words is "twelve billion, eight hundred seventy-two million, two hundred sixty-three thousand, five hundred sixty-eight".