2580398860 has 48 divisors (see below), whose sum is σ = 5847660000. Its totient is φ = 950805504.

The previous prime is 2580398851. The next prime is 2580398867. The reversal of 2580398860 is 688930852.

It is not an unprimeable number, because it can be changed into a prime (2580398867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119796 + ... + 139684.

It is an arithmetic number, because the mean of its divisors is an integer number (121826250).

Almost surely, 2^2580398860 is an apocalyptic number.

2580398860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2580398860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2923830000).

2580398860 is an abundant number, since it is smaller than the sum of its proper divisors (3267261140).

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

2580398860 is a wasteful number, since it uses less digits than its factorization.

2580398860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20410 (or 20408 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 2580398860 is about 50797.6265193562. The cubic root of 2580398860 is about 1371.6046447319.

The spelling of 2580398860 in words is "two billion, five hundred eighty million, three hundred ninety-eight thousand, eight hundred sixty".