18033266969 has 2 divisors, whose sum is σ = 18033266970. Its totient is φ = 18033266968.

The previous prime is 18033266963. The next prime is 18033266971. The reversal of 18033266969 is 96966233081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18033266944 + 25 = 134288^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 18033266969 - 2²⁴ = 18016489753 is a prime.

It is a super-2 number, since 2×18033266969² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 18033266971, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18033266969.

It is not a weakly prime, because it can be changed into another prime (18033266963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9016633484 + 9016633485.

It is an arithmetic number, because the mean of its divisors is an integer number (9016633485).

Almost surely, 2^18033266969 is an apocalyptic number.

It is an amenable number.

18033266969 is a deficient number, since it is larger than the sum of its proper divisors (1).

18033266969 is an equidigital number, since it uses as much as digits as its factorization.

18033266969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2519424, while the sum is 53.

The spelling of 18033266969 in words is "eighteen billion, thirty-three million, two hundred sixty-six thousand, nine hundred sixty-nine".