8686502056868 has 12 divisors (see below), whose sum is σ = 15203164325580. Its totient is φ = 4342740820992.

The previous prime is 8686502056831. The next prime is 8686502056871.

8686502056868 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 7910707509604 + 775794547264 = 2812598^2 + 880792^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8686502056798 and 8686502056807.

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, 127513553 + ... + 127581656.

It is an arithmetic number, because the mean of its divisors is an integer number (1266930360465).

Almost surely, 2^{8686502056868} is an apocalyptic number.

It is an amenable number.

8686502056868 is a deficient number, since it is larger than the sum of its proper divisors (6516662268712).

8686502056868 is a wasteful number, since it uses less digits than its factorization.

8686502056868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255103726 (or 255103724 counting only the distinct ones).

The product of its (nonzero) digits is 265420800, while the sum is 68.

The spelling of 8686502056868 in words is "eight trillion, six hundred eighty-six billion, five hundred two million, fifty-six thousand, eight hundred sixty-eight".