218347867064611 has 2 divisors, whose sum is σ = 218347867064612. Its totient is φ = 218347867064610.

The previous prime is 218347867064557. The next prime is 218347867064653. The reversal of 218347867064611 is 116460768743812.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-218347867064611 is a prime.

It is not a weakly prime, because it can be changed into another prime (218347867064681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109173933532305 + 109173933532306.

It is an arithmetic number, because the mean of its divisors is an integer number (109173933532306).

Almost surely, 2^{218347867064611} is an apocalyptic number.

218347867064611 is a deficient number, since it is larger than the sum of its proper divisors (1).

218347867064611 is an equidigital number, since it uses as much as digits as its factorization.

218347867064611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65028096, while the sum is 64.

The spelling of 218347867064611 in words is "two hundred eighteen trillion, three hundred forty-seven billion, eight hundred sixty-seven million, sixty-four thousand, six hundred eleven".