18323141769 has 9 divisors (see below), whose sum is σ = 26467346919. Its totient is φ = 12215157120.

The previous prime is 18323141731. The next prime is 18323141783. The reversal of 18323141769 is 96714132381.

The square root of 18323141769 is 135363.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 676676169 + 17646465600 = 26013^2 + 132840^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 18323141769 - 2²⁹ = 17786270857 is a prime.

It is a super-3 number, since 3×18323141769³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (18323141729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 383529 + ... + 428649.

Almost surely, 2^18323141769 is an apocalyptic number.

18323141769 is the 135363-rd square number.

18323141769 is the 67682-nd centered octagonal number.

It is an amenable number.

18323141769 is a deficient number, since it is larger than the sum of its proper divisors (8144205150).

18323141769 is an frugal number, since it uses more digits than its factorization.

18323141769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90248 (or 45124 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The spelling of 18323141769 in words is "eighteen billion, three hundred twenty-three million, one hundred forty-one thousand, seven hundred sixty-nine".