8521847040 has 432 divisors, whose sum is σ = 33072181632. Its totient is φ = 1831600128.

The previous prime is 8521847029. The next prime is 8521847119. The reversal of 8521847040 is 407481258.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8521847040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7767772 + ... + 7768868.

It is an arithmetic number, because the mean of its divisors is an integer number (76555976).

Almost surely, 2^8521847040 is an apocalyptic number.

8521847040 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 8521847040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16536090816).

8521847040 is an abundant number, since it is smaller than the sum of its proper divisors (24550334592).

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

8521847040 is a wasteful number, since it uses less digits than its factorization.

8521847040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162 (or 1131 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 8521847040 is about 92313.8507484115. The cubic root of 8521847040 is about 2042.5745272978.

The spelling of 8521847040 in words is "eight billion, five hundred twenty-one million, eight hundred forty-seven thousand, forty".