28316312804 has 12 divisors (see below), whose sum is σ = 53365358844. Its totient is φ = 13069067424.

The previous prime is 28316312747. The next prime is 28316312821. The reversal of 28316312804 is 40821361382.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8592919204 + 19723393600 = 92698^2 + 140440^2 .

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 3 ways as a sum of consecutive naturals, for example, 272272187 + ... + 272272290.

It is an arithmetic number, because the mean of its divisors is an integer number (4447113237).

Almost surely, 2^28316312804 is an apocalyptic number.

It is an amenable number.

28316312804 is a deficient number, since it is larger than the sum of its proper divisors (25049046040).

28316312804 is a wasteful number, since it uses less digits than its factorization.

28316312804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544544494 (or 544544492 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 28316312804 in words is "twenty-eight billion, three hundred sixteen million, three hundred twelve thousand, eight hundred four".