18810484244459 has 2 divisors, whose sum is σ = 18810484244460. Its totient is φ = 18810484244458.

The previous prime is 18810484244413. The next prime is 18810484244483. The reversal of 18810484244459 is 95444248401881.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18810484244459 - 2¹² = 18810484240363 is a prime.

It is a super-2 number, since 2×18810484244459² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18810484244059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9405242122229 + 9405242122230.

It is an arithmetic number, because the mean of its divisors is an integer number (9405242122230).

Almost surely, 2^{18810484244459} is an apocalyptic number.

18810484244459 is a deficient number, since it is larger than the sum of its proper divisors (1).

18810484244459 is an equidigital number, since it uses as much as digits as its factorization.

18810484244459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47185920, while the sum is 62.

The spelling of 18810484244459 in words is "eighteen trillion, eight hundred ten billion, four hundred eighty-four million, two hundred forty-four thousand, four hundred fifty-nine".