28354699800 has 288 divisors, whose sum is σ = 109438099680. Its totient is φ = 6444748800.

The previous prime is 28354699777. The next prime is 28354699873. The reversal of 28354699800 is 899645382.

28354699800 is a `hidden beast` number, since 2 + 8 + 3 + 546 + 9 + 98 + 0 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2274384 + ... + 2286816.

Almost surely, 2^28354699800 is an apocalyptic number.

28354699800 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 28354699800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54719049840).

28354699800 is an abundant number, since it is smaller than the sum of its proper divisors (81083399880).

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

28354699800 is a wasteful number, since it uses less digits than its factorization.

28354699800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12643 (or 12631 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 28354699800 in words is "twenty-eight billion, three hundred fifty-four million, six hundred ninety-nine thousand, eight hundred".