8688867866 has 12 divisors (see below), whose sum is σ = 15161187978. Its totient is φ = 3723800472.

The previous prime is 8688867839. The next prime is 8688867871. The reversal of 8688867866 is 6687688868.

It can be written as a sum of positive squares in only one way, i.e., 8671520641 + 17347225 = 93121^2 + 4165^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8688867866.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44330861 + ... + 44331056.

Almost surely, 2^8688867866 is an apocalyptic number.

8688867866 is a deficient number, since it is larger than the sum of its proper divisors (6472320112).

8688867866 is a wasteful number, since it uses less digits than its factorization.

8688867866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88661933 (or 88661926 counting only the distinct ones).

The product of its digits is 297271296, while the sum is 71.

The square root of 8688867866 is about 93214.0969274498. The cubic root of 8688867866 is about 2055.8325167827.

The spelling of 8688867866 in words is "eight billion, six hundred eighty-eight million, eight hundred sixty-seven thousand, eight hundred sixty-six".