18349920067067 has 2 divisors, whose sum is σ = 18349920067068. Its totient is φ = 18349920067066.

The previous prime is 18349920066953. The next prime is 18349920067081. The reversal of 18349920067067 is 76076002994381.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18349920067067 is a prime.

It is not a weakly prime, because it can be changed into another prime (18349920027067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9174960033533 + 9174960033534.

It is an arithmetic number, because the mean of its divisors is an integer number (9174960033534).

Almost surely, 2^{18349920067067} is an apocalyptic number.

18349920067067 is a deficient number, since it is larger than the sum of its proper divisors (1).

18349920067067 is an equidigital number, since it uses as much as digits as its factorization.

18349920067067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27433728, while the sum is 62.

The spelling of 18349920067067 in words is "eighteen trillion, three hundred forty-nine billion, nine hundred twenty million, sixty-seven thousand, sixty-seven".