28331248163 has 2 divisors, whose sum is σ = 28331248164. Its totient is φ = 28331248162.

The previous prime is 28331248157. The next prime is 28331248181. The reversal of 28331248163 is 36184213382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28331248163 - 2²⁸ = 28062812707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28331248163.

It is not a weakly prime, because it can be changed into another prime (28331248123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14165624081 + 14165624082.

It is an arithmetic number, because the mean of its divisors is an integer number (14165624082).

Almost surely, 2^28331248163 is an apocalyptic number.

28331248163 is a deficient number, since it is larger than the sum of its proper divisors (1).

28331248163 is an equidigital number, since it uses as much as digits as its factorization.

28331248163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 41.

The spelling of 28331248163 in words is "twenty-eight billion, three hundred thirty-one million, two hundred forty-eight thousand, one hundred sixty-three".