127591855927 has 2 divisors, whose sum is σ = 127591855928. Its totient is φ = 127591855926.

The previous prime is 127591855891. The next prime is 127591855973. The reversal of 127591855927 is 729558195721.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (729558195721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127591855927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127591835927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63795927963 + 63795927964.

It is an arithmetic number, because the mean of its divisors is an integer number (63795927964).

Almost surely, 2^127591855927 is an apocalyptic number.

127591855927 is a deficient number, since it is larger than the sum of its proper divisors (1).

127591855927 is an equidigital number, since it uses as much as digits as its factorization.

127591855927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15876000, while the sum is 61.

The spelling of 127591855927 in words is "one hundred twenty-seven billion, five hundred ninety-one million, eight hundred fifty-five thousand, nine hundred twenty-seven".