49764378767523840001

This number is a prime.

                                                       4976437876 7523840001

The largest prime obtained by multiplying the first n digits (n = 32) of π plus 1. [Gupta]

49764378767523840000 is the product of the first 32 digits of π. The next digit is a zero so this is as high as the product of the first n digits of π ever gets. Note that 49764378767523840000 + 1 is a prime number. [Gaydos]