It is a weak prime.
It is a cyclic number.
It is a congruent number.
Almost surely, 2127740041301799 is an apocalyptic number.
127740041301799 is an equidigital number, since it uses as much as digits as its factorization.
127740041301799 is an odious number, because the sum of its binary digits is odd.
The spelling of 127740041301799 in words is "one hundred twenty-seven trillion, seven hundred forty billion, forty-one million, three hundred one thousand, seven hundred ninety-nine".