2569341689 has 2 divisors, whose sum is σ = 2569341690. Its totient is φ = 2569341688.

The previous prime is 2569341647. The next prime is 2569341737. The reversal of 2569341689 is 9861439652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1608651664 + 960690025 = 40108^2 + 30995^2 .

It is a cyclic number.

It is not a de Polignac number, because 2569341689 - 2²⁰ = 2568293113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2569341689.

It is not a weakly prime, because it can be changed into another prime (2569341989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1284670844 + 1284670845.

It is an arithmetic number, because the mean of its divisors is an integer number (1284670845).

Almost surely, 2^2569341689 is an apocalyptic number.

It is an amenable number.

2569341689 is a deficient number, since it is larger than the sum of its proper divisors (1).

2569341689 is an equidigital number, since it uses as much as digits as its factorization.

2569341689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2799360, while the sum is 53.

The square root of 2569341689 is about 50688.6741688910. The cubic root of 2569341689 is about 1369.6427023916.

The spelling of 2569341689 in words is "two billion, five hundred sixty-nine million, three hundred forty-one thousand, six hundred eighty-nine".