6468570257 has 2 divisors, whose sum is σ = 6468570258. Its totient is φ = 6468570256.

The previous prime is 6468570253. The next prime is 6468570271. The reversal of 6468570257 is 7520758646.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6445520656 + 23049601 = 80284^2 + 4801^2 .

It is a cyclic number.

It is not a de Polignac number, because 6468570257 - 2² = 6468570253 is a prime.

It is not a weakly prime, because it can be changed into another prime (6468570253) 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, 3234285128 + 3234285129.

It is an arithmetic number, because the mean of its divisors is an integer number (3234285129).

Almost surely, 2^6468570257 is an apocalyptic number.

It is an amenable number.

6468570257 is a deficient number, since it is larger than the sum of its proper divisors (1).

6468570257 is an equidigital number, since it uses as much as digits as its factorization.

6468570257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The square root of 6468570257 is about 80427.4222948865. The cubic root of 6468570257 is about 1863.2427205344.

The spelling of 6468570257 in words is "six billion, four hundred sixty-eight million, five hundred seventy thousand, two hundred fifty-seven".