86571319127 has 4 divisors (see below), whose sum is σ = 86776952136. Its totient is φ = 86365686120.

The previous prime is 86571319111. The next prime is 86571319141. The reversal of 86571319127 is 72191317568.

It is a happy number.

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 86571319127 - 2⁴ = 86571319111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86571312127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102815873 + ... + 102816714.

It is an arithmetic number, because the mean of its divisors is an integer number (21694238034).

Almost surely, 2^86571319127 is an apocalyptic number.

86571319127 is a deficient number, since it is larger than the sum of its proper divisors (205633009).

86571319127 is a wasteful number, since it uses less digits than its factorization.

86571319127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205633008.

The product of its digits is 635040, while the sum is 50.

The spelling of 86571319127 in words is "eighty-six billion, five hundred seventy-one million, three hundred nineteen thousand, one hundred twenty-seven".