28320802677 has 12 divisors (see below), whose sum is σ = 40963191360. Its totient is φ = 18854981928.

The previous prime is 28320802669. The next prime is 28320802691. The reversal of 28320802677 is 77620802382.

It is not a de Polignac number, because 28320802677 - 2³ = 28320802669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28320802637) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2122413 + ... + 2135714.

It is an arithmetic number, because the mean of its divisors is an integer number (3413599280).

Almost surely, 2^28320802677 is an apocalyptic number.

It is an amenable number.

28320802677 is a deficient number, since it is larger than the sum of its proper divisors (12642388683).

28320802677 is a wasteful number, since it uses less digits than its factorization.

28320802677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4258872 (or 4258869 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 28320802677 in words is "twenty-eight billion, three hundred twenty million, eight hundred two thousand, six hundred seventy-seven".