12637728433 has 16 divisors (see below), whose sum is σ = 14318622720. Its totient is φ = 11053790800.

The previous prime is 12637728421. The next prime is 12637728443. The reversal of 12637728433 is 33482773621.

12637728433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12637728433 - 2⁵ = 12637728401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12637728443) 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 15 ways as a sum of consecutive naturals, for example, 176653 + ... + 237658.

It is an arithmetic number, because the mean of its divisors is an integer number (894913920).

Almost surely, 2^12637728433 is an apocalyptic number.

It is an amenable number.

12637728433 is a deficient number, since it is larger than the sum of its proper divisors (1680894287).

12637728433 is a wasteful number, since it uses less digits than its factorization.

12637728433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414428.

The product of its digits is 1016064, while the sum is 46.

The spelling of 12637728433 in words is "twelve billion, six hundred thirty-seven million, seven hundred twenty-eight thousand, four hundred thirty-three".