127944832291 has 2 divisors, whose sum is σ = 127944832292. Its totient is φ = 127944832290.

The previous prime is 127944832283. The next prime is 127944832313. The reversal of 127944832291 is 192238449721.

It is a weak prime.

It is an emirp because it is prime and its reverse (192238449721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127944832291 - 2³ = 127944832283 is a prime.

It is not a weakly prime, because it can be changed into another prime (127944832891) 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, 63972416145 + 63972416146.

It is an arithmetic number, because the mean of its divisors is an integer number (63972416146).

Almost surely, 2^127944832291 is an apocalyptic number.

127944832291 is a deficient number, since it is larger than the sum of its proper divisors (1).

127944832291 is an equidigital number, since it uses as much as digits as its factorization.

127944832291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 52.

The spelling of 127944832291 in words is "one hundred twenty-seven billion, nine hundred forty-four million, eight hundred thirty-two thousand, two hundred ninety-one".