28304866592 has 18 divisors (see below), whose sum is σ = 55727079849. Its totient is φ = 14151957440.

The previous prime is 28304866591. The next prime is 28304866609. The reversal of 28304866592 is 29566840382.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 23005608976 + 5299257616 = 151676^2 + 72796^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=118964.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28304866591) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 936842 + ... + 966582.

Almost surely, 2^28304866592 is an apocalyptic number.

It is an amenable number.

28304866592 is a deficient number, since it is larger than the sum of its proper divisors (27422213257).

28304866592 is an frugal number, since it uses more digits than its factorization.

28304866592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59492 (or 29743 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 53.

The spelling of 28304866592 in words is "twenty-eight billion, three hundred four million, eight hundred sixty-six thousand, five hundred ninety-two".