12686078889 has 24 divisors (see below), whose sum is σ = 20530466112. Its totient is φ = 7480732320.

The previous prime is 12686078869. The next prime is 12686078893. The reversal of 12686078889 is 98887068621.

12686078889 is a `hidden beast` number, since 12 + 6 + 8 + 607 + 8 + 8 + 8 + 9 = 666.

12686078889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12686078889 - 2⁷ = 12686078761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12686078869) 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 23 ways as a sum of consecutive naturals, for example, 1727989 + ... + 1735314.

It is an arithmetic number, because the mean of its divisors is an integer number (855436088).

Almost surely, 2^12686078889 is an apocalyptic number.

It is an amenable number.

12686078889 is a deficient number, since it is larger than the sum of its proper divisors (7844387223).

12686078889 is a wasteful number, since it uses less digits than its factorization.

12686078889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3463357 (or 3463354 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 63.

The spelling of 12686078889 in words is "twelve billion, six hundred eighty-six million, seventy-eight thousand, eight hundred eighty-nine".