2585780286 has 16 divisors (see below), whose sum is σ = 5173761168. Its totient is φ = 861560000.

The previous prime is 2585780237. The next prime is 2585780287. The reversal of 2585780286 is 6820875852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2585780287) 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 7 ways as a sum of consecutive naturals, for example, 76215 + ... + 104786.

It is an arithmetic number, because the mean of its divisors is an integer number (323360073).

Almost surely, 2^2585780286 is an apocalyptic number.

2585780286 is an abundant number, since it is smaller than the sum of its proper divisors (2587980882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2585780286 is a wasteful number, since it uses less digits than its factorization.

2585780286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183387.

The product of its (nonzero) digits is 2150400, while the sum is 51.

The square root of 2585780286 is about 50850.5681974155. The cubic root of 2585780286 is about 1372.5574772297.

The spelling of 2585780286 in words is "two billion, five hundred eighty-five million, seven hundred eighty thousand, two hundred eighty-six".