18282645224069 has 2 divisors, whose sum is σ = 18282645224070. Its totient is φ = 18282645224068.

The previous prime is 18282645224021. The next prime is 18282645224093. The reversal of 18282645224069 is 96042254628281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11259413805025 + 7023231419044 = 3355505^2 + 2650138^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18282645224069 is a prime.

It is a super-3 number, since 3×18282645224069³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18282645223999 and 18282645224017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18282645224099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9141322612034 + 9141322612035.

It is an arithmetic number, because the mean of its divisors is an integer number (9141322612035).

Almost surely, 2^{18282645224069} is an apocalyptic number.

It is an amenable number.

18282645224069 is a deficient number, since it is larger than the sum of its proper divisors (1).

18282645224069 is an equidigital number, since it uses as much as digits as its factorization.

18282645224069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26542080, while the sum is 59.

The spelling of 18282645224069 in words is "eighteen trillion, two hundred eighty-two billion, six hundred forty-five million, two hundred twenty-four thousand, sixty-nine".