12428843370889 has 24 divisors (see below), whose sum is σ = 14148084710144. Its totient is φ = 10898848144800.

The previous prime is 12428843370871. The next prime is 12428843370961. The reversal of 12428843370889 is 98807334882421.

It is not a de Polignac number, because 12428843370889 - 2⁷ = 12428843370761 is a prime.

It is a super-2 number, since 2×12428843370889² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12428843370859) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4244982 + ... + 6548095.

Almost surely, 2^{12428843370889} is an apocalyptic number.

It is an amenable number.

12428843370889 is a deficient number, since it is larger than the sum of its proper divisors (1719241339255).

12428843370889 is a wasteful number, since it uses less digits than its factorization.

12428843370889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10793437 (or 10793426 counting only the distinct ones).

The product of its (nonzero) digits is 148635648, while the sum is 67.

The spelling of 12428843370889 in words is "twelve trillion, four hundred twenty-eight billion, eight hundred forty-three million, three hundred seventy thousand, eight hundred eighty-nine".