28055204399200 has 144 divisors (see below), whose sum is σ = 75174495149376. Its totient is φ = 10139303692800.

The previous prime is 28055204399197. The next prime is 28055204399219. The reversal of 28055204399200 is 299340255082.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8345022 + ... + 11213821.

It is an arithmetic number, because the mean of its divisors is an integer number (522045105204).

Almost surely, 2^{28055204399200} is an apocalyptic number.

28055204399200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28055204399200 is an abundant number, since it is smaller than the sum of its proper divisors (47119290750176).

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

28055204399200 is a wasteful number, since it uses less digits than its factorization.

28055204399200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19559037 (or 19559024 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 28055204399200 in words is "twenty-eight trillion, fifty-five billion, two hundred four million, three hundred ninety-nine thousand, two hundred".