8533544784 has 80 divisors (see below), whose sum is σ = 23229614400. Its totient is φ = 2691975168.

The previous prime is 8533544779. The next prime is 8533544813. The reversal of 8533544784 is 4874453358.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 970552 + ... + 979304.

It is an arithmetic number, because the mean of its divisors is an integer number (290370180).

Almost surely, 2^8533544784 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 8533544784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11614807200).

8533544784 is an abundant number, since it is smaller than the sum of its proper divisors (14696069616).

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

8533544784 is a wasteful number, since it uses less digits than its factorization.

8533544784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9852 (or 9846 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 51.

The square root of 8533544784 is about 92377.1875735563. The cubic root of 8533544784 is about 2043.5086983934.

The spelling of 8533544784 in words is "eight billion, five hundred thirty-three million, five hundred forty-four thousand, seven hundred eighty-four".