127926686171 has 2 divisors, whose sum is σ = 127926686172. Its totient is φ = 127926686170.

The previous prime is 127926686161. The next prime is 127926686201. The reversal of 127926686171 is 171686629721.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127926686171 - 2²² = 127922491867 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (127926686161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63963343085 + 63963343086.

It is an arithmetic number, because the mean of its divisors is an integer number (63963343086).

Almost surely, 2^127926686171 is an apocalyptic number.

127926686171 is a deficient number, since it is larger than the sum of its proper divisors (1).

127926686171 is an equidigital number, since it uses as much as digits as its factorization.

127926686171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 56.

The spelling of 127926686171 in words is "one hundred twenty-seven billion, nine hundred twenty-six million, six hundred eighty-six thousand, one hundred seventy-one".