8031605868 has 504 divisors, whose sum is σ = 26668815264. Its totient is φ = 2093921280.

The previous prime is 8031605861. The next prime is 8031605921. The reversal of 8031605868 is 8685061308.

8031605868 is a `hidden beast` number, since 8 + 0 + 3 + 1 + 60 + 586 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (8031605861) by changing a digit.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 77976705 + ... + 77976807.

It is an arithmetic number, because the mean of its divisors is an integer number (52914316).

Almost surely, 2^8031605868 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 8031605868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13334407632).

8031605868 is an abundant number, since it is smaller than the sum of its proper divisors (18637209396).

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

8031605868 is a wasteful number, since it uses less digits than its factorization.

8031605868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 8031605868 is about 89619.2271111507. The cubic root of 8031605868 is about 2002.6303614162.

The spelling of 8031605868 in words is "eight billion, thirty-one million, six hundred five thousand, eight hundred sixty-eight".