18882608238239 has 2 divisors, whose sum is σ = 18882608238240. Its totient is φ = 18882608238238.

The previous prime is 18882608238233. The next prime is 18882608238253. The reversal of 18882608238239 is 93283280628881.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18882608238239 is a prime.

It is a super-2 number, since 2×18882608238239² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18882608238233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9441304119119 + 9441304119120.

It is an arithmetic number, because the mean of its divisors is an integer number (9441304119120).

Almost surely, 2^{18882608238239} is an apocalyptic number.

18882608238239 is a deficient number, since it is larger than the sum of its proper divisors (1).

18882608238239 is an equidigital number, since it uses as much as digits as its factorization.

18882608238239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127401984, while the sum is 68.

The spelling of 18882608238239 in words is "eighteen trillion, eight hundred eighty-two billion, six hundred eight million, two hundred thirty-eight thousand, two hundred thirty-nine".