12686078888 has 16 divisors (see below), whose sum is σ = 27184454880. Its totient is φ = 5436890928.

The previous prime is 12686078869. The next prime is 12686078893. The reversal of 12686078888 is 88887068621.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12686078888.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113268506 + ... + 113268617.

It is an arithmetic number, because the mean of its divisors is an integer number (1699028430).

Almost surely, 2^12686078888 is an apocalyptic number.

It is an amenable number.

12686078888 is an abundant number, since it is smaller than the sum of its proper divisors (14498375992).

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

12686078888 is a wasteful number, since it uses less digits than its factorization.

12686078888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226537136 (or 226537132 counting only the distinct ones).

The product of its (nonzero) digits is 16515072, while the sum is 62.

The spelling of 12686078888 in words is "twelve billion, six hundred eighty-six million, seventy-eight thousand, eight hundred eighty-eight".