2585089866 has 8 divisors (see below), whose sum is σ = 5170179744. Its totient is φ = 861696620.

The previous prime is 2585089823. The next prime is 2585089873. The reversal of 2585089866 is 6689805852.

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

2585089866 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215424150 + ... + 215424161.

It is an arithmetic number, because the mean of its divisors is an integer number (646272468).

Almost surely, 2^2585089866 is an apocalyptic number.

2585089866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2585089866 is a wasteful number, since it uses less digits than its factorization.

2585089866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430848316.

The product of its (nonzero) digits is 8294400, while the sum is 57.

The square root of 2585089866 is about 50843.7790294939. The cubic root of 2585089866 is about 1372.4353057917.

The spelling of 2585089866 in words is "two billion, five hundred eighty-five million, eighty-nine thousand, eight hundred sixty-six".