28274289163 has 2 divisors, whose sum is σ = 28274289164. Its totient is φ = 28274289162.

The previous prime is 28274289161. The next prime is 28274289209. The reversal of 28274289163 is 36198247282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28274289163 - 2¹ = 28274289161 is a prime.

Together with 28274289161, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28274289163.

It is not a weakly prime, because it can be changed into another prime (28274289161) 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 as a sum of consecutive naturals, namely, 14137144581 + 14137144582.

It is an arithmetic number, because the mean of its divisors is an integer number (14137144582).

Almost surely, 2^28274289163 is an apocalyptic number.

28274289163 is a deficient number, since it is larger than the sum of its proper divisors (1).

28274289163 is an equidigital number, since it uses as much as digits as its factorization.

28274289163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 52.

The spelling of 28274289163 in words is "twenty-eight billion, two hundred seventy-four million, two hundred eighty-nine thousand, one hundred sixty-three".