28009852200 has 288 divisors, whose sum is σ = 103008540960. Its totient is φ = 6764428800.

The previous prime is 28009852177. The next prime is 28009852219. The reversal of 28009852200 is 225890082.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5482047 + ... + 5487153.

It is an arithmetic number, because the mean of its divisors is an integer number (357668545).

Almost surely, 2^28009852200 is an apocalyptic number.

28009852200 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 28009852200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51504270480).

28009852200 is an abundant number, since it is smaller than the sum of its proper divisors (74998688760).

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

28009852200 is a wasteful number, since it uses less digits than its factorization.

28009852200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5417 (or 5405 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 28009852200 in words is "twenty-eight billion, nine million, eight hundred fifty-two thousand, two hundred".