2568160813 has 2 divisors, whose sum is σ = 2568160814. Its totient is φ = 2568160812.

The previous prime is 2568160781. The next prime is 2568160849. The reversal of 2568160813 is 3180618652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1407600324 + 1160560489 = 37518^2 + 34067^2 .

It is a cyclic number.

It is not a de Polignac number, because 2568160813 - 2⁵ = 2568160781 is a prime.

It is a super-2 number, since 2×2568160813² = 13190899922857641938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2568160883) 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, 1284080406 + 1284080407.

It is an arithmetic number, because the mean of its divisors is an integer number (1284080407).

Almost surely, 2^2568160813 is an apocalyptic number.

It is an amenable number.

2568160813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2568160813 is an equidigital number, since it uses as much as digits as its factorization.

2568160813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 2568160813 is about 50677.0245081536. The cubic root of 2568160813 is about 1369.4328398096.

The spelling of 2568160813 in words is "two billion, five hundred sixty-eight million, one hundred sixty thousand, eight hundred thirteen".