28928227328 has 384 divisors, whose sum is σ = 78988815360. Its totient is φ = 10227548160.

The previous prime is 28928227319. The next prime is 28928227333. The reversal of 28928227328 is 82372282982.

It is a self number, because there is not a number n which added to its sum of digits gives 28928227328.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211154876 + ... + 211155012.

It is an arithmetic number, because the mean of its divisors is an integer number (205700040).

Almost surely, 2^28928227328 is an apocalyptic number.

28928227328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28928227328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39494407680).

28928227328 is an abundant number, since it is smaller than the sum of its proper divisors (50060588032).

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

28928227328 is a wasteful number, since it uses less digits than its factorization.

28928227328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293 (or 273 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 53.

The spelling of 28928227328 in words is "twenty-eight billion, nine hundred twenty-eight million, two hundred twenty-seven thousand, three hundred twenty-eight".