28928873800 has 48 divisors (see below), whose sum is σ = 67272943140. Its totient is φ = 11569259520.

The previous prime is 28928873797. The next prime is 28928873819. The reversal of 28928873800 is 837882982.

It can be written as a sum of positive squares in 6 ways, for example, as 16802899876 + 12125973924 = 129626^2 + 110118^2 .

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 11 ways as a sum of consecutive naturals, for example, 1299564 + ... + 1321636.

Almost surely, 2^28928873800 is an apocalyptic number.

28928873800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28928873800 is an abundant number, since it is smaller than the sum of its proper divisors (38344069340).

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

28928873800 is a wasteful number, since it uses less digits than its factorization.

28928873800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28642 (or 28633 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 55.

The spelling of 28928873800 in words is "twenty-eight billion, nine hundred twenty-eight million, eight hundred seventy-three thousand, eight hundred".