28572844828 has 48 divisors (see below), whose sum is σ = 54975674880. Its totient is φ = 12886272000.

The previous prime is 28572844799. The next prime is 28572844829. The reversal of 28572844828 is 82844827582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28572844829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2971228 + ... + 2980828.

It is an arithmetic number, because the mean of its divisors is an integer number (1145326560).

Almost surely, 2^28572844828 is an apocalyptic number.

It is an amenable number.

28572844828 is a deficient number, since it is larger than the sum of its proper divisors (26402830052).

28572844828 is a wasteful number, since it uses less digits than its factorization.

28572844828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10138 (or 10136 counting only the distinct ones).

The product of its digits is 18350080, while the sum is 58.

The spelling of 28572844828 in words is "twenty-eight billion, five hundred seventy-two million, eight hundred forty-four thousand, eight hundred twenty-eight".