28548306685328 has 20 divisors (see below), whose sum is σ = 55312463330460. Its totient is φ = 14274122600064.

The previous prime is 28548306685319. The next prime is 28548306685343. The reversal of 28548306685328 is 82358660384582.

It can be written as a sum of positive squares in 2 ways, for example, as 2730201038224 + 25818105647104 = 1652332^2 + 5081152^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6993026 + ... + 10295582.

It is an arithmetic number, because the mean of its divisors is an integer number (2765623166523).

Almost surely, 2^{28548306685328} is an apocalyptic number.

It is an amenable number.

28548306685328 is a deficient number, since it is larger than the sum of its proper divisors (26764156645132).

28548306685328 is a wasteful number, since it uses less digits than its factorization.

28548306685328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3842834 (or 3842828 counting only the distinct ones).

The product of its (nonzero) digits is 530841600, while the sum is 68.

The spelling of 28548306685328 in words is "twenty-eight trillion, five hundred forty-eight billion, three hundred six million, six hundred eighty-five thousand, three hundred twenty-eight".