218432272105811 has 2 divisors, whose sum is σ = 218432272105812. Its totient is φ = 218432272105810.

The previous prime is 218432272105793. The next prime is 218432272105877. The reversal of 218432272105811 is 118501272234812.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-218432272105811 is a prime.

It is not a weakly prime, because it can be changed into another prime (218432272105891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109216136052905 + 109216136052906.

It is an arithmetic number, because the mean of its divisors is an integer number (109216136052906).

Almost surely, 2^{218432272105811} is an apocalyptic number.

218432272105811 is a deficient number, since it is larger than the sum of its proper divisors (1).

218432272105811 is an equidigital number, since it uses as much as digits as its factorization.

218432272105811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 430080, while the sum is 47.

The spelling of 218432272105811 in words is "two hundred eighteen trillion, four hundred thirty-two billion, two hundred seventy-two million, one hundred five thousand, eight hundred eleven".