28528224582 has 64 divisors (see below), whose sum is σ = 67114656000. Its totient is φ = 7970006400.

The previous prime is 28528224577. The next prime is 28528224583. The reversal of 28528224582 is 28542282582.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28528224583) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 684169 + ... + 724667.

It is an arithmetic number, because the mean of its divisors is an integer number (1048666500).

Almost surely, 2^28528224582 is an apocalyptic number.

28528224582 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 28528224582, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33557328000).

28528224582 is an abundant number, since it is smaller than the sum of its proper divisors (38586431418).

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

28528224582 is a wasteful number, since it uses less digits than its factorization.

28528224582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41349.

The product of its digits is 1638400, while the sum is 48.

The spelling of 28528224582 in words is "twenty-eight billion, five hundred twenty-eight million, two hundred twenty-four thousand, five hundred eighty-two".