18522435443 has 2 divisors, whose sum is σ = 18522435444. Its totient is φ = 18522435442.

The previous prime is 18522435439. The next prime is 18522435467. The reversal of 18522435443 is 34453422581.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18522435443 - 2² = 18522435439 is a prime.

It is a super-2 number, since 2×18522435443² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18522435443.

It is not a weakly prime, because it can be changed into another prime (18522434443) 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, 9261217721 + 9261217722.

It is an arithmetic number, because the mean of its divisors is an integer number (9261217722).

Almost surely, 2^18522435443 is an apocalyptic number.

18522435443 is a deficient number, since it is larger than the sum of its proper divisors (1).

18522435443 is an equidigital number, since it uses as much as digits as its factorization.

18522435443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 460800, while the sum is 41.

The spelling of 18522435443 in words is "eighteen billion, five hundred twenty-two million, four hundred thirty-five thousand, four hundred forty-three".