127866716768011 has 4 divisors (see below), whose sum is σ = 137702618057872. Its totient is φ = 118030815478152.

The previous prime is 127866716768003. The next prime is 127866716768029. The reversal of 127866716768011 is 110867617668721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 127866716768011 - 2³ = 127866716768003 is a prime.

It is a super-2 number, since 2×127866716768011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127866716768051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4917950644911 + ... + 4917950644936.

It is an arithmetic number, because the mean of its divisors is an integer number (34425654514468).

Almost surely, 2^{127866716768011} is an apocalyptic number.

127866716768011 is a deficient number, since it is larger than the sum of its proper divisors (9835901289861).

127866716768011 is an equidigital number, since it uses as much as digits as its factorization.

127866716768011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9835901289860.

The product of its (nonzero) digits is 56899584, while the sum is 67.

The spelling of 127866716768011 in words is "one hundred twenty-seven trillion, eight hundred sixty-six billion, seven hundred sixteen million, seven hundred sixty-eight thousand, eleven".