8453228544 has 144 divisors (see below), whose sum is σ = 24693587100. Its totient is φ = 2785542144.

The previous prime is 8453228533. The next prime is 8453228551. The reversal of 8453228544 is 4458223548.

8453228544 is a `hidden beast` number, since 84 + 5 + 3 + 2 + 28 + 544 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8370054144 + 83174400 = 91488^2 + 9120^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 8453228544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1637872 + ... + 1643024.

Almost surely, 2^8453228544 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 8453228544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12346793550).

8453228544 is an abundant number, since it is smaller than the sum of its proper divisors (16240358556).

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

8453228544 is a wasteful number, since it uses less digits than its factorization.

8453228544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5270 (or 5247 counting only the distinct ones).

The product of its digits is 1228800, while the sum is 45.

The square root of 8453228544 is about 91941.4408414399. The cubic root of 8453228544 is about 2037.0774297941.

The spelling of 8453228544 in words is "eight billion, four hundred fifty-three million, two hundred twenty-eight thousand, five hundred forty-four".