86789134727 has 4 divisors (see below), whose sum is σ = 87290806200. Its totient is φ = 86287463256.

The previous prime is 86789134703. The next prime is 86789134739. The reversal of 86789134727 is 72743198768.

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 86789134727 - 2²² = 86784940423 is a prime.

It is a super-2 number, since 2×86789134727² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86789134727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86789134427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250835477 + ... + 250835822.

It is an arithmetic number, because the mean of its divisors is an integer number (21822701550).

Almost surely, 2^86789134727 is an apocalyptic number.

86789134727 is a deficient number, since it is larger than the sum of its proper divisors (501671473).

86789134727 is a wasteful number, since it uses less digits than its factorization.

86789134727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501671472.

The product of its digits is 28449792, while the sum is 62.

The spelling of 86789134727 in words is "eighty-six billion, seven hundred eighty-nine million, one hundred thirty-four thousand, seven hundred twenty-seven".