28866872324 has 12 divisors (see below), whose sum is σ = 50902653648. Its totient is φ = 14323257000.

The previous prime is 28866872303. The next prime is 28866872327. The reversal of 28866872324 is 42327866882.

It is a self number, because there is not a number n which added to its sum of digits gives 28866872324.

It is not an unprimeable number, because it can be changed into a prime (28866872327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27544202 + ... + 27545249.

It is an arithmetic number, because the mean of its divisors is an integer number (4241887804).

Almost surely, 2^28866872324 is an apocalyptic number.

It is an amenable number.

28866872324 is a deficient number, since it is larger than the sum of its proper divisors (22035781324).

28866872324 is a wasteful number, since it uses less digits than its factorization.

28866872324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55089586 (or 55089584 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 56.

The spelling of 28866872324 in words is "twenty-eight billion, eight hundred sixty-six million, eight hundred seventy-two thousand, three hundred twenty-four".