127542536871 has 16 divisors (see below), whose sum is σ = 171741563136. Its totient is φ = 84186259776.

The previous prime is 127542536857. The next prime is 127542536899. The reversal of 127542536871 is 178635245721.

It is not a de Polignac number, because 127542536871 - 2¹⁴ = 127542520487 is a prime.

It is a super-2 number, since 2×127542536871² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127542536831) 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, 1643971 + ... + 1719803.

It is an arithmetic number, because the mean of its divisors is an integer number (10733847696).

Almost surely, 2^127542536871 is an apocalyptic number.

127542536871 is a deficient number, since it is larger than the sum of its proper divisors (44199026265).

127542536871 is a wasteful number, since it uses less digits than its factorization.

127542536871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81382.

The product of its digits is 2822400, while the sum is 51.

The spelling of 127542536871 in words is "one hundred twenty-seven billion, five hundred forty-two million, five hundred thirty-six thousand, eight hundred seventy-one".