2568161293 has 2 divisors, whose sum is σ = 2568161294. Its totient is φ = 2568161292.

The previous prime is 2568161279. The next prime is 2568161327. The reversal of 2568161293 is 3921618652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1609453924 + 958707369 = 40118^2 + 30963^2 .

It is a cyclic number.

It is not a de Polignac number, because 2568161293 - 2⁹ = 2568160781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2568165293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1284080646 + 1284080647.

It is an arithmetic number, because the mean of its divisors is an integer number (1284080647).

Almost surely, 2^2568161293 is an apocalyptic number.

It is an amenable number.

2568161293 is a deficient number, since it is larger than the sum of its proper divisors (1).

2568161293 is an equidigital number, since it uses as much as digits as its factorization.

2568161293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 43.

The square root of 2568161293 is about 50677.0292440273. The cubic root of 2568161293 is about 1369.4329251272.

The spelling of 2568161293 in words is "two billion, five hundred sixty-eight million, one hundred sixty-one thousand, two hundred ninety-three".