28566417828 has 48 divisors (see below), whose sum is σ = 73309582080. Its totient is φ = 8602650624.

The previous prime is 28566417821. The next prime is 28566417829. The reversal of 28566417828 is 82871466582.

It is not an unprimeable number, because it can be changed into a prime (28566417821) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1940733 + ... + 1955396.

It is an arithmetic number, because the mean of its divisors is an integer number (1527282960).

Almost surely, 2^28566417828 is an apocalyptic number.

It is an amenable number.

28566417828 is an abundant number, since it is smaller than the sum of its proper divisors (44743164252).

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

28566417828 is a wasteful number, since it uses less digits than its factorization.

28566417828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3896196 (or 3896194 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 57.

The spelling of 28566417828 in words is "twenty-eight billion, five hundred sixty-six million, four hundred seventeen thousand, eight hundred twenty-eight".