28822544856 has 192 divisors, whose sum is σ = 90857894400. Its totient is φ = 8084160000.

The previous prime is 28822544827. The next prime is 28822544867. The reversal of 28822544856 is 65844522882.

28822544856 is a `hidden beast` number, since 28 + 8 + 22 + 544 + 8 + 56 = 666.

It is a super-2 number, since 2×28822544856² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8980180 + ... + 8983388.

It is an arithmetic number, because the mean of its divisors is an integer number (473218200).

Almost surely, 2^28822544856 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 28822544856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45428947200).

28822544856 is an abundant number, since it is smaller than the sum of its proper divisors (62035349544).

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

28822544856 is a wasteful number, since it uses less digits than its factorization.

28822544856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3550 (or 3543 counting only the distinct ones).

The product of its digits is 9830400, while the sum is 54.

The spelling of 28822544856 in words is "twenty-eight billion, eight hundred twenty-two million, five hundred forty-four thousand, eight hundred fifty-six".