2585798988 has 48 divisors (see below), whose sum is σ = 6205610880. Its totient is φ = 837520000.

The previous prime is 2585798987. The next prime is 2585799011. The reversal of 2585798988 is 8898975852.

It is not an unprimeable number, because it can be changed into a prime (2585798987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113023 + ... + 133961.

It is an arithmetic number, because the mean of its divisors is an integer number (129283560).

Almost surely, 2^2585798988 is an apocalyptic number.

It is an amenable number.

2585798988 is an abundant number, since it is smaller than the sum of its proper divisors (3619811892).

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

2585798988 is a wasteful number, since it uses less digits than its factorization.

2585798988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21238 (or 21236 counting only the distinct ones).

The product of its digits is 116121600, while the sum is 69.

The square root of 2585798988 is about 50850.7520888335. The cubic root of 2585798988 is about 1372.5607862899.

The spelling of 2585798988 in words is "two billion, five hundred eighty-five million, seven hundred ninety-eight thousand, nine hundred eighty-eight".