12756628904 has 16 divisors (see below), whose sum is σ = 24310789620. Its totient is φ = 6273751680.

The previous prime is 12756628813. The next prime is 12756628909. The reversal of 12756628904 is 40982665721.

It can be written as a sum of positive squares in 2 ways, for example, as 11416922500 + 1339706404 = 106850^2 + 36602^2 .

It is not an unprimeable number, because it can be changed into a prime (12756628909) 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, 13069829 + ... + 13070804.

Almost surely, 2^12756628904 is an apocalyptic number.

It is an amenable number.

12756628904 is a deficient number, since it is larger than the sum of its proper divisors (11554160716).

12756628904 is a wasteful number, since it uses less digits than its factorization.

12756628904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26140700 (or 26140696 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 12756628904 in words is "twelve billion, seven hundred fifty-six million, six hundred twenty-eight thousand, nine hundred four".