12727844437 has 48 divisors (see below), whose sum is σ = 16560947200. Its totient is φ = 9565063200.

The previous prime is 12727844401. The next prime is 12727844453. The reversal of 12727844437 is 73444872721.

It is not a de Polignac number, because 12727844437 - 2⁷ = 12727844309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12727844137) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9950764 + ... + 9952042.

Almost surely, 2^12727844437 is an apocalyptic number.

It is an amenable number.

12727844437 is a deficient number, since it is larger than the sum of its proper divisors (3833102763).

12727844437 is a wasteful number, since it uses less digits than its factorization.

12727844437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718 (or 1707 counting only the distinct ones).

The product of its digits is 2107392, while the sum is 49.

The spelling of 12727844437 in words is "twelve billion, seven hundred twenty-seven million, eight hundred forty-four thousand, four hundred thirty-seven".