18458068663 has 2 divisors, whose sum is σ = 18458068664. Its totient is φ = 18458068662.

The previous prime is 18458068613. The next prime is 18458068693. The reversal of 18458068663 is 36686085481.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18458068663 - 2⁹ = 18458068151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18458068613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9229034331 + 9229034332.

It is an arithmetic number, because the mean of its divisors is an integer number (9229034332).

Almost surely, 2^18458068663 is an apocalyptic number.

18458068663 is a deficient number, since it is larger than the sum of its proper divisors (1).

18458068663 is an equidigital number, since it uses as much as digits as its factorization.

18458068663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6635520, while the sum is 55.

The spelling of 18458068663 in words is "eighteen billion, four hundred fifty-eight million, sixty-eight thousand, six hundred sixty-three".