8318272657 has 2 divisors, whose sum is σ = 8318272658. Its totient is φ = 8318272656.

The previous prime is 8318272639. The next prime is 8318272679. The reversal of 8318272657 is 7562728138.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8318169616 + 103041 = 91204^2 + 321^2 .

It is a cyclic number.

It is not a de Polignac number, because 8318272657 - 2²³ = 8309884049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8318272657.

It is not a weakly prime, because it can be changed into another prime (8318272357) 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, 4159136328 + 4159136329.

It is an arithmetic number, because the mean of its divisors is an integer number (4159136329).

Almost surely, 2^8318272657 is an apocalyptic number.

It is an amenable number.

8318272657 is a deficient number, since it is larger than the sum of its proper divisors (1).

8318272657 is an equidigital number, since it uses as much as digits as its factorization.

8318272657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1128960, while the sum is 49.

The square root of 8318272657 is about 91204.5648912378. The cubic root of 8318272657 is about 2026.1785676619.

The spelling of 8318272657 in words is "eight billion, three hundred eighteen million, two hundred seventy-two thousand, six hundred fifty-seven".