2568475668 has 96 divisors (see below), whose sum is σ = 7091618688. Its totient is φ = 714649600.

The previous prime is 2568475667. The next prime is 2568475669. The reversal of 2568475668 is 8665748652.

It is an interprime number because it is at equal distance from previous prime (2568475667) and next prime (2568475669).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2568475661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78046 + ... + 105962.

It is an arithmetic number, because the mean of its divisors is an integer number (73871028).

Almost surely, 2^2568475668 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 2568475668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3545809344).

2568475668 is an abundant number, since it is smaller than the sum of its proper divisors (4523143020).

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

2568475668 is a wasteful number, since it uses less digits than its factorization.

2568475668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27993 (or 27991 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 57.

The square root of 2568475668 is about 50680.1308995942. The cubic root of 2568475668 is about 1369.4888014087.

The spelling of 2568475668 in words is "two billion, five hundred sixty-eight million, four hundred seventy-five thousand, six hundred sixty-eight".