127856068689 has 16 divisors (see below), whose sum is σ = 184343171328. Its totient is φ = 78516532992.

The previous prime is 127856068679. The next prime is 127856068693. The reversal of 127856068689 is 986860658721.

It is not a de Polignac number, because 127856068689 - 2⁴ = 127856068673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127856068619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26667622 + ... + 26672415.

It is an arithmetic number, because the mean of its divisors is an integer number (11521448208).

Almost surely, 2^127856068689 is an apocalyptic number.

It is an amenable number.

127856068689 is a deficient number, since it is larger than the sum of its proper divisors (56487102639).

127856068689 is a wasteful number, since it uses less digits than its factorization.

127856068689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53340104.

The product of its (nonzero) digits is 69672960, while the sum is 66.

The spelling of 127856068689 in words is "one hundred twenty-seven billion, eight hundred fifty-six million, sixty-eight thousand, six hundred eighty-nine".