28928700800 has 384 divisors, whose sum is σ = 79591334400. Its totient is φ = 10340352000.

The previous prime is 28928700799. The next prime is 28928700833. The reversal of 28928700800 is 800782982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 191580725 + ... + 191580875.

It is an arithmetic number, because the mean of its divisors is an integer number (207269100).

Almost surely, 2^28928700800 is an apocalyptic number.

28928700800 is a gapful number since it is divisible by the number (20) 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 28928700800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39795667200).

28928700800 is an abundant number, since it is smaller than the sum of its proper divisors (50662633600).

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

28928700800 is a wasteful number, since it uses less digits than its factorization.

28928700800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The spelling of 28928700800 in words is "twenty-eight billion, nine hundred twenty-eight million, seven hundred thousand, eight hundred".