28527820800 has 228 divisors, whose sum is σ = 94396825776. Its totient is φ = 7602176000.

The previous prime is 28527820793. The next prime is 28527820823. The reversal of 28527820800 is 802872582.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19660075 + ... + 19661525.

Almost surely, 2^28527820800 is an apocalyptic number.

28527820800 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 28527820800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47198412888).

28527820800 is an abundant number, since it is smaller than the sum of its proper divisors (65869004976).

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

28527820800 is an frugal number, since it uses more digits than its factorization.

28527820800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500 (or 1461 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 42.

The spelling of 28527820800 in words is "twenty-eight billion, five hundred twenty-seven million, eight hundred twenty thousand, eight hundred".