8688913157857 has 2 divisors, whose sum is σ = 8688913157858. Its totient is φ = 8688913157856.

The previous prime is 8688913157803. The next prime is 8688913157927. The reversal of 8688913157857 is 7587513198868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8443911917281 + 245001240576 = 2905841^2 + 494976^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8688913157857 is a prime.

It is not a weakly prime, because it can be changed into another prime (8688913157657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4344456578928 + 4344456578929.

It is an arithmetic number, because the mean of its divisors is an integer number (4344456578929).

Almost surely, 2^{8688913157857} is an apocalyptic number.

It is an amenable number.

8688913157857 is a deficient number, since it is larger than the sum of its proper divisors (1).

8688913157857 is an equidigital number, since it uses as much as digits as its factorization.

8688913157857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 812851200, while the sum is 76.

The spelling of 8688913157857 in words is "eight trillion, six hundred eighty-eight billion, nine hundred thirteen million, one hundred fifty-seven thousand, eight hundred fifty-seven".