8493128165677 has 2 divisors, whose sum is σ = 8493128165678. Its totient is φ = 8493128165676.

The previous prime is 8493128165671. The next prime is 8493128165693. The reversal of 8493128165677 is 7765618213948.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7161479096836 + 1331649068841 = 2676094^2 + 1153971^2 .

It is a cyclic number.

It is not a de Polignac number, because 8493128165677 - 2¹⁹ = 8493127641389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8493128165671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4246564082838 + 4246564082839.

It is an arithmetic number, because the mean of its divisors is an integer number (4246564082839).

Almost surely, 2^{8493128165677} is an apocalyptic number.

It is an amenable number.

8493128165677 is a deficient number, since it is larger than the sum of its proper divisors (1).

8493128165677 is an equidigital number, since it uses as much as digits as its factorization.

8493128165677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 121927680, while the sum is 67.

The spelling of 8493128165677 in words is "eight trillion, four hundred ninety-three billion, one hundred twenty-eight million, one hundred sixty-five thousand, six hundred seventy-seven".