127705674649279 has 2 divisors, whose sum is σ = 127705674649280. Its totient is φ = 127705674649278.

The previous prime is 127705674649271. The next prime is 127705674649337. The reversal of 127705674649279 is 972946476507721.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127705674649279 - 2³ = 127705674649271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127705674649271) 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, 63852837324639 + 63852837324640.

It is an arithmetic number, because the mean of its divisors is an integer number (63852837324640).

Almost surely, 2^{127705674649279} is an apocalyptic number.

127705674649279 is a deficient number, since it is larger than the sum of its proper divisors (1).

127705674649279 is an equidigital number, since it uses as much as digits as its factorization.

127705674649279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240421120, while the sum is 76.

The spelling of 127705674649279 in words is "one hundred twenty-seven trillion, seven hundred five billion, six hundred seventy-four million, six hundred forty-nine thousand, two hundred seventy-nine".