2568329380 has 48 divisors (see below), whose sum is σ = 5533872624. Its totient is φ = 1000673280.

The previous prime is 2568329377. The next prime is 2568329419. The reversal of 2568329380 is 839238652.

It can be written as a sum of positive squares in 8 ways, for example, as 59721984 + 2508607396 = 7728^2 + 50086^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2568329380.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 598924 + ... + 603196.

It is an arithmetic number, because the mean of its divisors is an integer number (115289013).

Almost surely, 2^2568329380 is an apocalyptic number.

2568329380 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 2568329380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2766936312).

2568329380 is an abundant number, since it is smaller than the sum of its proper divisors (2965543244).

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

2568329380 is a wasteful number, since it uses less digits than its factorization.

2568329380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5056 (or 5054 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 2568329380 is about 50678.6876309953. The cubic root of 2568329380 is about 1369.4628010869.

The spelling of 2568329380 in words is "two billion, five hundred sixty-eight million, three hundred twenty-nine thousand, three hundred eighty".