2556823959376 has 20 divisors (see below), whose sum is σ = 4954062771252. Its totient is φ = 1278356147456.

The previous prime is 2556823959329. The next prime is 2556823959379. The reversal of 2556823959376 is 6739593286552.

2556823959376 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 625902499600 + 1930921459776 = 791140^2 + 1389576^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556823959379) 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, 3110461 + ... + 3845596.

Almost surely, 2^{2556823959376} is an apocalyptic number.

It is an amenable number.

2556823959376 is a deficient number, since it is larger than the sum of its proper divisors (2397238811876).

2556823959376 is a wasteful number, since it uses less digits than its factorization.

2556823959376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6979038 (or 6979032 counting only the distinct ones).

The product of its digits is 734832000, while the sum is 70.

The spelling of 2556823959376 in words is "two trillion, five hundred fifty-six billion, eight hundred twenty-three million, nine hundred fifty-nine thousand, three hundred seventy-six".