28599955200 has 864 divisors, whose sum is σ = 114359347200. Its totient is φ = 6967296000.

The previous prime is 28599955127. The next prime is 28599955213. The reversal of 28599955200 is 255999582.

28599955200 is a `hidden beast` number, since 2 + 85 + 9 + 9 + 9 + 552 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 101779060 + ... + 101779340.

Almost surely, 2^28599955200 is an apocalyptic number.

28599955200 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 28599955200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57179673600).

28599955200 is an abundant number, since it is smaller than the sum of its proper divisors (85759392000).

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

28599955200 is a wasteful number, since it uses less digits than its factorization.

28599955200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 2916000, while the sum is 54.

The spelling of 28599955200 in words is "twenty-eight billion, five hundred ninety-nine million, nine hundred fifty-five thousand, two hundred".