2560841669 has 8 divisors (see below), whose sum is σ = 2645262840. Its totient is φ = 2477221056.

The previous prime is 2560841663. The next prime is 2560841687. The reversal of 2560841669 is 9661480652.

2560841669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 884348644 + 1676493025 = 29738^2 + 40945^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2560841669 - 2⁴ = 2560841653 is a prime.

It is a super-2 number, since 2×2560841669² = 13115820107373411122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2560841663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193634 + ... + 206435.

It is an arithmetic number, because the mean of its divisors is an integer number (330657855).

Almost surely, 2^2560841669 is an apocalyptic number.

It is an amenable number.

2560841669 is a deficient number, since it is larger than the sum of its proper divisors (84421171).

2560841669 is a wasteful number, since it uses less digits than its factorization.

2560841669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400279.

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 2560841669 is about 50604.7593512705. The cubic root of 2560841669 is about 1368.1306610960.

The spelling of 2560841669 in words is "two billion, five hundred sixty million, eight hundred forty-one thousand, six hundred sixty-nine".