2569745269 has 48 divisors (see below), whose sum is σ = 3440337600. Its totient is φ = 1896846336.

The previous prime is 2569745261. The next prime is 2569745273. The reversal of 2569745269 is 9625479652.

It is not a de Polignac number, because 2569745269 - 2³ = 2569745261 is a prime.

It is a super-2 number, since 2×2569745269² = 13207181495095764722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2569745261) 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 in 47 ways as a sum of consecutive naturals, for example, 809317 + ... + 812485.

It is an arithmetic number, because the mean of its divisors is an integer number (71673700).

Almost surely, 2^2569745269 is an apocalyptic number.

It is an amenable number.

2569745269 is a deficient number, since it is larger than the sum of its proper divisors (870592331).

2569745269 is a wasteful number, since it uses less digits than its factorization.

2569745269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282 (or 3275 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 55.

The square root of 2569745269 is about 50692.6549807761. The cubic root of 2569745269 is about 1369.7144109626.

The spelling of 2569745269 in words is "two billion, five hundred sixty-nine million, seven hundred forty-five thousand, two hundred sixty-nine".