2568502728 has 192 divisors, whose sum is σ = 7875766080. Its totient is φ = 749414400.

The previous prime is 2568502649. The next prime is 2568502757. The reversal of 2568502728 is 8272058652.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2694700 + ... + 2695652.

It is an arithmetic number, because the mean of its divisors is an integer number (41019615).

Almost surely, 2^2568502728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2568502728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3937883040).

2568502728 is an abundant number, since it is smaller than the sum of its proper divisors (5307263352).

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

2568502728 is a wasteful number, since it uses less digits than its factorization.

2568502728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100 (or 1093 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 2568502728 is about 50680.3978674201. The cubic root of 2568502728 is about 1369.4936107771.

The spelling of 2568502728 in words is "two billion, five hundred sixty-eight million, five hundred two thousand, seven hundred twenty-eight".