8671563960 has 128 divisors (see below), whose sum is σ = 27808220160. Its totient is φ = 2157900800.

The previous prime is 8671563899. The next prime is 8671563991. The reversal of 8671563960 is 693651768.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74845 + ... + 151475.

It is an arithmetic number, because the mean of its divisors is an integer number (217251720).

Almost surely, 2^8671563960 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 8671563960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13904110080).

8671563960 is an abundant number, since it is smaller than the sum of its proper divisors (19136656200).

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

8671563960 is a wasteful number, since it uses less digits than its factorization.

8671563960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76709 (or 76705 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 51.

The square root of 8671563960 is about 93121.2325949351. The cubic root of 8671563960 is about 2054.4668776480.

The spelling of 8671563960 in words is "eight billion, six hundred seventy-one million, five hundred sixty-three thousand, nine hundred sixty".