8681568330 has 128 divisors (see below), whose sum is σ = 22504366080. Its totient is φ = 2135577600.

The previous prime is 8681568317. The next prime is 8681568397. The reversal of 8681568330 is 338651868.

It is a self number, because there is not a number n which added to its sum of digits gives 8681568330.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6083077 + ... + 6084503.

It is an arithmetic number, because the mean of its divisors is an integer number (175815360).

Almost surely, 2^8681568330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8681568330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11252183040).

8681568330 is an abundant number, since it is smaller than the sum of its proper divisors (13822797750).

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

8681568330 is a wasteful number, since it uses less digits than its factorization.

8681568330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684.

The product of its (nonzero) digits is 829440, while the sum is 48.

The square root of 8681568330 is about 93174.9340219783. The cubic root of 8681568330 is about 2055.2566524306.

The spelling of 8681568330 in words is "eight billion, six hundred eighty-one million, five hundred sixty-eight thousand, three hundred thirty".