8286113257 has 2 divisors, whose sum is σ = 8286113258. Its totient is φ = 8286113256.

The previous prime is 8286113249. The next prime is 8286113267. The reversal of 8286113257 is 7523116828.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7427681856 + 858431401 = 86184^2 + 29299^2 .

It is a cyclic number.

It is not a de Polignac number, because 8286113257 - 2³ = 8286113249 is a prime.

It is a super-2 number, since 2×8286113257² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8286113267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4143056628 + 4143056629.

It is an arithmetic number, because the mean of its divisors is an integer number (4143056629).

Almost surely, 2^8286113257 is an apocalyptic number.

It is an amenable number.

8286113257 is a deficient number, since it is larger than the sum of its proper divisors (1).

8286113257 is an equidigital number, since it uses as much as digits as its factorization.

8286113257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 43.

The square root of 8286113257 is about 91028.0904831031. The cubic root of 8286113257 is about 2023.5640488609.

The spelling of 8286113257 in words is "eight billion, two hundred eighty-six million, one hundred thirteen thousand, two hundred fifty-seven".