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211065811349579 is a prime number
BaseRepresentation
bin101111111111011010010110…
…101101011011000001001011
31000200022200202021221200120122
4233333122112231123001023
5210131100240201141304
62024522143430413455
762313000364660034
oct5777322655330113
91020280667850518
10211065811349579
116128556503a26a
121b809b7520128b
1390a05610c67b4
143a198d5791a8b
15196048d26c9be
hexbff696b5b04b

211065811349579 has 2 divisors, whose sum is σ = 211065811349580. Its totient is φ = 211065811349578.

The previous prime is 211065811349557. The next prime is 211065811349581. The reversal of 211065811349579 is 975943118560112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211065811349579 - 216 = 211065811284043 is a prime.

Together with 211065811349581, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (211065811349539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105532905674789 + 105532905674790.

It is an arithmetic number, because the mean of its divisors is an integer number (105532905674790).

It is a 1-persistent number, because it is pandigital, but 2⋅211065811349579 = 422131622699158 is not.

Almost surely, 2211065811349579 is an apocalyptic number.

211065811349579 is a deficient number, since it is larger than the sum of its proper divisors (1).

211065811349579 is an equidigital number, since it uses as much as digits as its factorization.

211065811349579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16329600, while the sum is 62.

The spelling of 211065811349579 in words is "two hundred eleven trillion, sixty-five billion, eight hundred eleven million, three hundred forty-nine thousand, five hundred seventy-nine".