18011869

This number is a prime.

+ The smallest invertible prime containing all the invertible digits (0, 1, 6, 8, 9) such that (a) replacing each digit by its square, i.e., (164011643681) and (b) replacing each digit by its cube, i.e., (1512011512216729), a distinct prime is obtained in each case. [Bajpai]

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