28316428866 has 48 divisors (see below), whose sum is σ = 66966576768. Its totient is φ = 8576013600.

The previous prime is 28316428853. The next prime is 28316428873. The reversal of 28316428866 is 66882461382.

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, 330055 + ... + 406901.

It is an arithmetic number, because the mean of its divisors is an integer number (1395137016).

Almost surely, 2^28316428866 is an apocalyptic number.

28316428866 is an abundant number, since it is smaller than the sum of its proper divisors (38650147902).

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

28316428866 is a wasteful number, since it uses less digits than its factorization.

28316428866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78727 (or 78724 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 54.

The spelling of 28316428866 in words is "twenty-eight billion, three hundred sixteen million, four hundred twenty-eight thousand, eight hundred sixty-six".