127973686975 has 6 divisors (see below), whose sum is σ = 158687371880. Its totient is φ = 102378949560.

The previous prime is 127973686961. The next prime is 127973686979. The reversal of 127973686975 is 579686379721.

It is not a de Polignac number, because 127973686975 - 2¹⁹ = 127973162687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127973686979) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2559473715 + ... + 2559473764.

Almost surely, 2^127973686975 is an apocalyptic number.

127973686975 is a deficient number, since it is larger than the sum of its proper divisors (30713684905).

127973686975 is an equidigital number, since it uses as much as digits as its factorization.

127973686975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5118947489 (or 5118947484 counting only the distinct ones).

The product of its digits is 240045120, while the sum is 70.

The spelling of 127973686975 in words is "one hundred twenty-seven billion, nine hundred seventy-three million, six hundred eighty-six thousand, nine hundred seventy-five".