9819384382169 has 2 divisors, whose sum is σ = 9819384382170. Its totient is φ = 9819384382168.

The previous prime is 9819384382063. The next prime is 9819384382177. The reversal of 9819384382169 is 9612834839189.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9815613808144 + 3770574025 = 3132988^2 + 61405^2 .

It is a cyclic number.

It is not a de Polignac number, because 9819384382169 - 2¹⁶ = 9819384316633 is a prime.

It is a super-2 number, since 2×9819384382169² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9819384382189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4909692191084 + 4909692191085.

It is an arithmetic number, because the mean of its divisors is an integer number (4909692191085).

Almost surely, 2^{9819384382169} is an apocalyptic number.

It is an amenable number.

9819384382169 is a deficient number, since it is larger than the sum of its proper divisors (1).

9819384382169 is an equidigital number, since it uses as much as digits as its factorization.

9819384382169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161243136, while the sum is 71.

The spelling of 9819384382169 in words is "nine trillion, eight hundred nineteen billion, three hundred eighty-four million, three hundred eighty-two thousand, one hundred sixty-nine".