8653257857 has 2 divisors, whose sum is σ = 8653257858. Its totient is φ = 8653257856.

The previous prime is 8653257827. The next prime is 8653257871. The reversal of 8653257857 is 7587523568.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5932696576 + 2720561281 = 77024^2 + 52159^2 .

It is a cyclic number.

It is not a de Polignac number, because 8653257857 - 2¹² = 8653253761 is a prime.

It is not a weakly prime, because it can be changed into another prime (8653257827) by changing a digit.

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, 4326628928 + 4326628929.

It is an arithmetic number, because the mean of its divisors is an integer number (4326628929).

Almost surely, 2^8653257857 is an apocalyptic number.

It is an amenable number.

8653257857 is a deficient number, since it is larger than the sum of its proper divisors (1).

8653257857 is an equidigital number, since it uses as much as digits as its factorization.

8653257857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112000, while the sum is 56.

The square root of 8653257857 is about 93022.8888876281. Note that the first 5 decimals coincide. The cubic root of 8653257857 is about 2053.0201652076.

The spelling of 8653257857 in words is "eight billion, six hundred fifty-three million, two hundred fifty-seven thousand, eight hundred fifty-seven".