12877808656 has 20 divisors (see below), whose sum is σ = 25197794604. Its totient is φ = 6375152000.

The previous prime is 12877808653. The next prime is 12877808681. The reversal of 12877808656 is 65680877821.

It is a happy number.

12877808656 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 5478368256 + 7399440400 = 74016^2 + 86020^2 .

It is a super-3 number, since 3×12877808656³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12877808656.

It is not an unprimeable number, because it can be changed into a prime (12877808653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3982855 + ... + 3986086.

Almost surely, 2^12877808656 is an apocalyptic number.

12877808656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12877808656 is a deficient number, since it is larger than the sum of its proper divisors (12319985948).

12877808656 is a wasteful number, since it uses less digits than its factorization.

12877808656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7969050 (or 7969044 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 58.

The spelling of 12877808656 in words is "twelve billion, eight hundred seventy-seven million, eight hundred eight thousand, six hundred fifty-six".