8481564000 has 768 divisors, whose sum is σ = 38041436160. Its totient is φ = 1787443200.

The previous prime is 8481563921. The next prime is 8481564011. The reversal of 8481564000 is 4651848.

8481564000 is a `hidden beast` number, since 8 + 4 + 8 + 1 + 5 + 640 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9827569 + ... + 9828431.

It is an arithmetic number, because the mean of its divisors is an integer number (49533120).

Almost surely, 2^8481564000 is an apocalyptic number.

8481564000 is a gapful number since it is divisible by the number (80) 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 8481564000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19020718080).

8481564000 is an abundant number, since it is smaller than the sum of its proper divisors (29559872160).

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

8481564000 is a wasteful number, since it uses less digits than its factorization.

8481564000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917 (or 893 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 8481564000 is about 92095.4070516006. The cubic root of 8481564000 is about 2039.3510046264.

The spelling of 8481564000 in words is "eight billion, four hundred eighty-one million, five hundred sixty-four thousand".