12551938679244 has 12 divisors (see below), whose sum is σ = 29287856918264. Its totient is φ = 4183979559744.

The previous prime is 12551938679239. The next prime is 12551938679261. The reversal of 12551938679244 is 44297683915521.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×12551938679244² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 522997444957 + ... + 522997444980.

Almost surely, 2^{12551938679244} is an apocalyptic number.

It is an amenable number.

12551938679244 is an abundant number, since it is smaller than the sum of its proper divisors (16735918239020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12551938679244 is a wasteful number, since it uses less digits than its factorization.

12551938679244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045994889944 (or 1045994889942 counting only the distinct ones).

The product of its digits is 130636800, while the sum is 66.

The spelling of 12551938679244 in words is "twelve trillion, five hundred fifty-one billion, nine hundred thirty-eight million, six hundred seventy-nine thousand, two hundred forty-four".