18673632163733 has 2 divisors, whose sum is σ = 18673632163734. Its totient is φ = 18673632163732.

The previous prime is 18673632163691. The next prime is 18673632163829. The reversal of 18673632163733 is 33736123637681.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17984876576164 + 688755587569 = 4240858^2 + 829913^2 .

It is a cyclic number.

It is not a de Polignac number, because 18673632163733 - 2¹⁴ = 18673632147349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18673632163933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9336816081866 + 9336816081867.

It is an arithmetic number, because the mean of its divisors is an integer number (9336816081867).

Almost surely, 2^{18673632163733} is an apocalyptic number.

It is an amenable number.

18673632163733 is a deficient number, since it is larger than the sum of its proper divisors (1).

18673632163733 is an equidigital number, since it uses as much as digits as its factorization.

18673632163733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41150592, while the sum is 59.

The spelling of 18673632163733 in words is "eighteen trillion, six hundred seventy-three billion, six hundred thirty-two million, one hundred sixty-three thousand, seven hundred thirty-three".