86168000857 has 2 divisors, whose sum is σ = 86168000858. Its totient is φ = 86168000856.

The previous prime is 86168000777. The next prime is 86168000873. The reversal of 86168000857 is 75800086168.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59196836416 + 26971164441 = 243304^2 + 164229^2 .

It is a cyclic number.

It is not a de Polignac number, because 86168000857 - 2⁷ = 86168000729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86168000857.

It is a weakly prime.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43084000428 + 43084000429.

It is an arithmetic number, because the mean of its divisors is an integer number (43084000429).

Almost surely, 2^86168000857 is an apocalyptic number.

It is an amenable number.

86168000857 is a deficient number, since it is larger than the sum of its proper divisors (1).

86168000857 is an equidigital number, since it uses as much as digits as its factorization.

86168000857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 86168000857 in words is "eighty-six billion, one hundred sixty-eight million, eight hundred fifty-seven", and thus it is an aban number.