8128284673 has 2 divisors, whose sum is σ = 8128284674. Its totient is φ = 8128284672.

The previous prime is 8128284631. The next prime is 8128284679. The reversal of 8128284673 is 3764828218.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6834659584 + 1293625089 = 82672^2 + 35967^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8128284673 is a prime.

It is not a weakly prime, because it can be changed into another prime (8128284679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4064142336 + 4064142337.

It is an arithmetic number, because the mean of its divisors is an integer number (4064142337).

Almost surely, 2^8128284673 is an apocalyptic number.

It is an amenable number.

8128284673 is a deficient number, since it is larger than the sum of its proper divisors (1).

8128284673 is an equidigital number, since it uses as much as digits as its factorization.

8128284673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1032192, while the sum is 49.

The square root of 8128284673 is about 90157.0001331011. Note that the first 3 decimals coincide. The cubic root of 8128284673 is about 2010.6337508853.

The spelling of 8128284673 in words is "eight billion, one hundred twenty-eight million, two hundred eighty-four thousand, six hundred seventy-three".