127963949389688 has 16 divisors (see below), whose sum is σ = 240786257085360. Its totient is φ = 63754280833600.

The previous prime is 127963949389669. The next prime is 127963949389693. The reversal of 127963949389688 is 886983949369721.

It is a junction number, because it is equal to n+sod(n) for n = 127963949389597 and 127963949389606.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 28461730268 + ... + 28461734763.

It is an arithmetic number, because the mean of its divisors is an integer number (15049141067835).

Almost surely, 2^{127963949389688} is an apocalyptic number.

It is an amenable number.

127963949389688 is a deficient number, since it is larger than the sum of its proper divisors (112822307695672).

127963949389688 is a wasteful number, since it uses less digits than its factorization.

127963949389688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56923465318 (or 56923465314 counting only the distinct ones).

The product of its digits is 60949905408, while the sum is 92.

The spelling of 127963949389688 in words is "one hundred twenty-seven trillion, nine hundred sixty-three billion, nine hundred forty-nine million, three hundred eighty-nine thousand, six hundred eighty-eight".