12877644624 has 160 divisors (see below), whose sum is σ = 36232264320. Its totient is φ = 3917776896.

The previous prime is 12877644623. The next prime is 12877644629. The reversal of 12877644624 is 42644677821.

It is a happy number.

12877644624 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12877644624² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12877644623) 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 31 ways as a sum of consecutive naturals, for example, 32437194 + ... + 32437590.

It is an arithmetic number, because the mean of its divisors is an integer number (226451652).

Almost surely, 2^12877644624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12877644624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18116132160).

12877644624 is an abundant number, since it is smaller than the sum of its proper divisors (23354619696).

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

12877644624 is a wasteful number, since it uses less digits than its factorization.

12877644624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877 (or 871 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 51.

The spelling of 12877644624 in words is "twelve billion, eight hundred seventy-seven million, six hundred forty-four thousand, six hundred twenty-four".