217413045671 has 2 divisors, whose sum is σ = 217413045672. Its totient is φ = 217413045670.

The previous prime is 217413045649. The next prime is 217413045719. The reversal of 217413045671 is 176540314712.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 217413045671 - 2³⁴ = 200233176487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (217413045071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108706522835 + 108706522836.

It is an arithmetic number, because the mean of its divisors is an integer number (108706522836).

Almost surely, 2^217413045671 is an apocalyptic number.

217413045671 is a deficient number, since it is larger than the sum of its proper divisors (1).

217413045671 is an equidigital number, since it uses as much as digits as its factorization.

217413045671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 217413045671 in words is "two hundred seventeen billion, four hundred thirteen million, forty-five thousand, six hundred seventy-one".