28633287888 has 320 divisors, whose sum is σ = 91416371200. Its totient is φ = 8543646720.

The previous prime is 28633287829. The next prime is 28633287899. The reversal of 28633287888 is 88878233682.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10939956 + ... + 10942572.

It is an arithmetic number, because the mean of its divisors is an integer number (285676160).

Almost surely, 2^28633287888 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 28633287888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45708185600).

28633287888 is an abundant number, since it is smaller than the sum of its proper divisors (62783083312).

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

28633287888 is a wasteful number, since it uses less digits than its factorization.

28633287888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2727 (or 2715 counting only the distinct ones).

The product of its digits is 49545216, while the sum is 63.

The spelling of 28633287888 in words is "twenty-eight billion, six hundred thirty-three million, two hundred eighty-seven thousand, eight hundred eighty-eight".