28088228684 has 24 divisors (see below), whose sum is σ = 49253279040. Its totient is φ = 14015890944.

The previous prime is 28088228681. The next prime is 28088228717. The reversal of 28088228684 is 48682288082.

It is not an unprimeable number, because it can be changed into a prime (28088228681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8861852 + ... + 8865020.

It is an arithmetic number, because the mean of its divisors is an integer number (2052219960).

Almost surely, 2^28088228684 is an apocalyptic number.

It is an amenable number.

28088228684 is a deficient number, since it is larger than the sum of its proper divisors (21165050356).

28088228684 is a wasteful number, since it uses less digits than its factorization.

28088228684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6929 (or 6927 counting only the distinct ones).

The product of its (nonzero) digits is 6291456, while the sum is 56.

The spelling of 28088228684 in words is "twenty-eight billion, eighty-eight million, two hundred twenty-eight thousand, six hundred eighty-four".