218602684271 has 2 divisors, whose sum is σ = 218602684272. Its totient is φ = 218602684270.

The previous prime is 218602684211. The next prime is 218602684273. The reversal of 218602684271 is 172486206812.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-218602684271 is a prime.

Together with 218602684273, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (218602684273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109301342135 + 109301342136.

It is an arithmetic number, because the mean of its divisors is an integer number (109301342136).

Almost surely, 2^218602684271 is an apocalyptic number.

218602684271 is a deficient number, since it is larger than the sum of its proper divisors (1).

218602684271 is an equidigital number, since it uses as much as digits as its factorization.

218602684271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 218602684271 in words is "two hundred eighteen billion, six hundred two million, six hundred eighty-four thousand, two hundred seventy-one".