86172516159 has 4 divisors (see below), whose sum is σ = 114896688216. Its totient is φ = 57448344104.

The previous prime is 86172516127. The next prime is 86172516203. The reversal of 86172516159 is 95161527168.

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 86172516159 - 2⁵ = 86172516127 is a prime.

It is a super-2 number, since 2×86172516159² (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 (86172512159) 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 3 ways as a sum of consecutive naturals, for example, 14362086024 + ... + 14362086029.

It is an arithmetic number, because the mean of its divisors is an integer number (28724172054).

Almost surely, 2^86172516159 is an apocalyptic number.

86172516159 is a deficient number, since it is larger than the sum of its proper divisors (28724172057).

86172516159 is a wasteful number, since it uses less digits than its factorization.

86172516159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28724172056.

The product of its digits is 907200, while the sum is 51.

The spelling of 86172516159 in words is "eighty-six billion, one hundred seventy-two million, five hundred sixteen thousand, one hundred fifty-nine".