18027112212611 has 2 divisors, whose sum is σ = 18027112212612. Its totient is φ = 18027112212610.

The previous prime is 18027112212601. The next prime is 18027112212673. The reversal of 18027112212611 is 11621221172081.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18027112212611 is a prime.

It is not a weakly prime, because it can be changed into another prime (18027112212601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9013556106305 + 9013556106306.

It is an arithmetic number, because the mean of its divisors is an integer number (9013556106306).

Almost surely, 2^{18027112212611} is an apocalyptic number.

18027112212611 is a deficient number, since it is larger than the sum of its proper divisors (1).

18027112212611 is an equidigital number, since it uses as much as digits as its factorization.

18027112212611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 35.

Adding to 18027112212611 its reverse (11621221172081), we get a palindrome (29648333384692).

The spelling of 18027112212611 in words is "eighteen trillion, twenty-seven billion, one hundred twelve million, two hundred twelve thousand, six hundred eleven".