12556843288 has 16 divisors (see below), whose sum is σ = 25684452360. Its totient is φ = 5707656000.

The previous prime is 12556843283. The next prime is 12556843301. The reversal of 12556843288 is 88234865521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12556843283) 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, 71345613 + ... + 71345788.

Almost surely, 2^12556843288 is an apocalyptic number.

It is an amenable number.

12556843288 is an abundant number, since it is smaller than the sum of its proper divisors (13127609072).

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

12556843288 is a wasteful number, since it uses less digits than its factorization.

12556843288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142691418 (or 142691414 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 52.

The spelling of 12556843288 in words is "twelve billion, five hundred fifty-six million, eight hundred forty-three thousand, two hundred eighty-eight".