28554751800 has 480 divisors, whose sum is σ = 101700112800. Its totient is φ = 7423902720.

The previous prime is 28554751783. The next prime is 28554751829. The reversal of 28554751800 is 815745582.

28554751800 is a `hidden beast` number, since 2 + 85 + 54 + 7 + 518 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 181877322 + ... + 181877478.

It is an arithmetic number, because the mean of its divisors is an integer number (211875235).

Almost surely, 2^28554751800 is an apocalyptic number.

28554751800 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 28554751800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50850056400).

28554751800 is an abundant number, since it is smaller than the sum of its proper divisors (73145361000).

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

28554751800 is a wasteful number, since it uses less digits than its factorization.

28554751800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 45.

The spelling of 28554751800 in words is "twenty-eight billion, five hundred fifty-four million, seven hundred fifty-one thousand, eight hundred".