18573338671 has 2 divisors, whose sum is σ = 18573338672. Its totient is φ = 18573338670.

The previous prime is 18573338659. The next prime is 18573338689. The reversal of 18573338671 is 17683337581.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18573338671 - 2⁵ = 18573338639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18573338611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9286669335 + 9286669336.

It is an arithmetic number, because the mean of its divisors is an integer number (9286669336).

Almost surely, 2^18573338671 is an apocalyptic number.

18573338671 is a deficient number, since it is larger than the sum of its proper divisors (1).

18573338671 is an equidigital number, since it uses as much as digits as its factorization.

18573338671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2540160, while the sum is 52.

The spelling of 18573338671 in words is "eighteen billion, five hundred seventy-three million, three hundred thirty-eight thousand, six hundred seventy-one".