12768757844 has 12 divisors (see below), whose sum is σ = 22508431764. Its totient is φ = 6337777344.

The previous prime is 12768757829. The next prime is 12768757861. The reversal of 12768757844 is 44875786721.

It can be written as a sum of positive squares in 2 ways, for example, as 10247512900 + 2521244944 = 101230^2 + 50212^2 .

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, 11649779 + ... + 11650874.

It is an arithmetic number, because the mean of its divisors is an integer number (1875702647).

Almost surely, 2^12768757844 is an apocalyptic number.

It is an amenable number.

12768757844 is a deficient number, since it is larger than the sum of its proper divisors (9739673920).

12768757844 is a wasteful number, since it uses less digits than its factorization.

12768757844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23300794 (or 23300792 counting only the distinct ones).

The product of its digits is 21073920, while the sum is 59.

The spelling of 12768757844 in words is "twelve billion, seven hundred sixty-eight million, seven hundred fifty-seven thousand, eight hundred forty-four".