12926388044 has 12 divisors (see below), whose sum is σ = 22828713600. Its totient is φ = 6403898448.

The previous prime is 12926388023. The next prime is 12926388103. The reversal of 12926388044 is 44088362921.

It is a super-2 number, since 2×12926388044² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12926388044.

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, 14823404 + ... + 14824275.

It is an arithmetic number, because the mean of its divisors is an integer number (1902392800).

Almost surely, 2^12926388044 is an apocalyptic number.

It is an amenable number.

12926388044 is a deficient number, since it is larger than the sum of its proper divisors (9902325556).

12926388044 is a wasteful number, since it uses less digits than its factorization.

12926388044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29647792 (or 29647790 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 12926388044 in words is "twelve billion, nine hundred twenty-six million, three hundred eighty-eight thousand, forty-four".