127811866305413 has 16 divisors (see below), whose sum is σ = 135367093209600. Its totient is φ = 120260741838336.

The previous prime is 127811866305371. The next prime is 127811866305439. The reversal of 127811866305413 is 314503668118721.

It is not a de Polignac number, because 127811866305413 - 2²⁰ = 127811865256837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127811866305493) 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 15 ways as a sum of consecutive naturals, for example, 1038105545 + ... + 1038228657.

It is an arithmetic number, because the mean of its divisors is an integer number (8460443325600).

Almost surely, 2^{127811866305413} is an apocalyptic number.

It is an amenable number.

127811866305413 is a deficient number, since it is larger than the sum of its proper divisors (7555226904187).

127811866305413 is a wasteful number, since it uses less digits than its factorization.

127811866305413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139276.

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 127811866305413 in words is "one hundred twenty-seven trillion, eight hundred eleven billion, eight hundred sixty-six million, three hundred five thousand, four hundred thirteen".