18867340183 has 2 divisors, whose sum is σ = 18867340184. Its totient is φ = 18867340182.

The previous prime is 18867340171. The next prime is 18867340207. The reversal of 18867340183 is 38104376881.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18867340183 - 2⁹ = 18867339671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18867340123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9433670091 + 9433670092.

It is an arithmetic number, because the mean of its divisors is an integer number (9433670092).

Almost surely, 2^18867340183 is an apocalyptic number.

18867340183 is a deficient number, since it is larger than the sum of its proper divisors (1).

18867340183 is an equidigital number, since it uses as much as digits as its factorization.

18867340183 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 18867340183 in words is "eighteen billion, eight hundred sixty-seven million, three hundred forty thousand, one hundred eighty-three".