12844866938404 has 24 divisors (see below), whose sum is σ = 22805736839928. Its totient is φ = 6329091121920.

The previous prime is 12844866938401. The next prime is 12844866938459. The reversal of 12844866938404 is 40483966844821.

It can be written as a sum of positive squares in 4 ways, for example, as 1256085045504 + 11588781892900 = 1120752^2 + 3404230^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12844866938404.

It is not an unprimeable number, because it can be changed into a prime (12844866938401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18278887 + ... + 18968590.

It is an arithmetic number, because the mean of its divisors is an integer number (950239034997).

Almost surely, 2^{12844866938404} is an apocalyptic number.

It is an amenable number.

12844866938404 is a deficient number, since it is larger than the sum of its proper divisors (9960869901524).

12844866938404 is a wasteful number, since it uses less digits than its factorization.

12844866938404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37248735 (or 37248733 counting only the distinct ones).

The product of its (nonzero) digits is 254803968, while the sum is 67.

The spelling of 12844866938404 in words is "twelve trillion, eight hundred forty-four billion, eight hundred sixty-six million, nine hundred thirty-eight thousand, four hundred four".