2568345287 has 2 divisors, whose sum is σ = 2568345288. Its totient is φ = 2568345286.

The previous prime is 2568345239. The next prime is 2568345313. The reversal of 2568345287 is 7825438652.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2568345287 is a prime.

It is a super-2 number, since 2×2568345287² = 13192795026510224738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2568345187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1284172643 + 1284172644.

It is an arithmetic number, because the mean of its divisors is an integer number (1284172644).

Almost surely, 2^2568345287 is an apocalyptic number.

2568345287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2568345287 is an equidigital number, since it uses as much as digits as its factorization.

2568345287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3225600, while the sum is 50.

The square root of 2568345287 is about 50678.8445704911. The cubic root of 2568345287 is about 1369.4656283463.

The spelling of 2568345287 in words is "two billion, five hundred sixty-eight million, three hundred forty-five thousand, two hundred eighty-seven".