18389487059 has 2 divisors, whose sum is σ = 18389487060. Its totient is φ = 18389487058.

The previous prime is 18389487023. The next prime is 18389487161. The reversal of 18389487059 is 95078498381.

It is a weak prime.

It is an emirp because it is prime and its reverse (95078498381) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18389487059 - 2²⁰ = 18388438483 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18389486992 and 18389487010.

It is not a weakly prime, because it can be changed into another prime (18389427059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9194743529 + 9194743530.

It is an arithmetic number, because the mean of its divisors is an integer number (9194743530).

Almost surely, 2^18389487059 is an apocalyptic number.

18389487059 is a deficient number, since it is larger than the sum of its proper divisors (1).

18389487059 is an equidigital number, since it uses as much as digits as its factorization.

18389487059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17418240, while the sum is 62.

The spelling of 18389487059 in words is "eighteen billion, three hundred eighty-nine million, four hundred eighty-seven thousand, fifty-nine".