28827026800 has 120 divisors (see below), whose sum is σ = 81364948560. Its totient is φ = 9676185600.

The previous prime is 28827026783. The next prime is 28827026827. The reversal of 28827026800 is 862072882.

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, 194785 + ... + 309184.

It is an arithmetic number, because the mean of its divisors is an integer number (678041238).

Almost surely, 2^28827026800 is an apocalyptic number.

28827026800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28827026800 is an abundant number, since it is smaller than the sum of its proper divisors (52537921760).

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

28827026800 is a wasteful number, since it uses less digits than its factorization.

28827026800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504011 (or 504000 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The spelling of 28827026800 in words is "twenty-eight billion, eight hundred twenty-seven million, twenty-six thousand, eight hundred".