18672831422671 has 2 divisors, whose sum is σ = 18672831422672. Its totient is φ = 18672831422670.

The previous prime is 18672831422617. The next prime is 18672831422789. The reversal of 18672831422671 is 17622413827681.

It is a happy number.

Together with previous prime (18672831422617) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18672831422671 - 2¹¹ = 18672831420623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18672831420671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9336415711335 + 9336415711336.

It is an arithmetic number, because the mean of its divisors is an integer number (9336415711336).

Almost surely, 2^{18672831422671} is an apocalyptic number.

18672831422671 is a deficient number, since it is larger than the sum of its proper divisors (1).

18672831422671 is an equidigital number, since it uses as much as digits as its factorization.

18672831422671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10838016, while the sum is 58.

The spelling of 18672831422671 in words is "eighteen trillion, six hundred seventy-two billion, eight hundred thirty-one million, four hundred twenty-two thousand, six hundred seventy-one".