18348642322643 has 2 divisors, whose sum is σ = 18348642322644. Its totient is φ = 18348642322642.

The previous prime is 18348642322613. The next prime is 18348642322711. The reversal of 18348642322643 is 34622324684381.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18348642322643 - 2¹⁰ = 18348642321619 is a prime.

It is not a weakly prime, because it can be changed into another prime (18348642322613) 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, 9174321161321 + 9174321161322.

It is an arithmetic number, because the mean of its divisors is an integer number (9174321161322).

Almost surely, 2^{18348642322643} is an apocalyptic number.

18348642322643 is a deficient number, since it is larger than the sum of its proper divisors (1).

18348642322643 is an equidigital number, since it uses as much as digits as its factorization.

18348642322643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31850496, while the sum is 56.

The spelling of 18348642322643 in words is "eighteen trillion, three hundred forty-eight billion, six hundred forty-two million, three hundred twenty-two thousand, six hundred forty-three".