127856447873 has 32 divisors (see below), whose sum is σ = 161475213312. Its totient is φ = 98337024000.

The previous prime is 127856447867. The next prime is 127856447933. The reversal of 127856447873 is 378744658721.

It is a cyclic number.

It is not a de Polignac number, because 127856447873 - 2²² = 127852253569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127856447573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7360148 + ... + 7377498.

It is an arithmetic number, because the mean of its divisors is an integer number (5046100416).

Almost surely, 2^127856447873 is an apocalyptic number.

It is an amenable number.

127856447873 is a deficient number, since it is larger than the sum of its proper divisors (33618765439).

127856447873 is a wasteful number, since it uses less digits than its factorization.

127856447873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18605.

The product of its digits is 63221760, while the sum is 62.

The spelling of 127856447873 in words is "one hundred twenty-seven billion, eight hundred fifty-six million, four hundred forty-seven thousand, eight hundred seventy-three".