18273101863 has 2 divisors, whose sum is σ = 18273101864. Its totient is φ = 18273101862.

The previous prime is 18273101843. The next prime is 18273101881. The reversal of 18273101863 is 36810137281.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18273101863 - 2⁹ = 18273101351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18273101843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9136550931 + 9136550932.

It is an arithmetic number, because the mean of its divisors is an integer number (9136550932).

Almost surely, 2^18273101863 is an apocalyptic number.

18273101863 is a deficient number, since it is larger than the sum of its proper divisors (1).

18273101863 is an equidigital number, since it uses as much as digits as its factorization.

18273101863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 18273101863 in words is "eighteen billion, two hundred seventy-three million, one hundred one thousand, eight hundred sixty-three".