18582638219 has 2 divisors, whose sum is σ = 18582638220. Its totient is φ = 18582638218.

The previous prime is 18582638201. The next prime is 18582638287. The reversal of 18582638219 is 91283628581.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18582638219 is a prime.

It is a super-2 number, since 2×18582638219² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18582638119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9291319109 + 9291319110.

It is an arithmetic number, because the mean of its divisors is an integer number (9291319110).

Almost surely, 2^18582638219 is an apocalyptic number.

18582638219 is a deficient number, since it is larger than the sum of its proper divisors (1).

18582638219 is an equidigital number, since it uses as much as digits as its factorization.

18582638219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1658880, while the sum is 53.

The spelling of 18582638219 in words is "eighteen billion, five hundred eighty-two million, six hundred thirty-eight thousand, two hundred nineteen".