86517194081 has 8 divisors (see below), whose sum is σ = 87228269664. Its totient is φ = 85808828160.

The previous prime is 86517194009. The next prime is 86517194131. The reversal of 86517194081 is 18049171568.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86517194081 - 2²⁶ = 86450085217 is a prime.

It is a super-2 number, since 2×86517194081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86517194581) 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 7 ways as a sum of consecutive naturals, for example, 613271 + ... + 741036.

It is an arithmetic number, because the mean of its divisors is an integer number (10903533708).

Almost surely, 2^86517194081 is an apocalyptic number.

It is an amenable number.

86517194081 is a deficient number, since it is larger than the sum of its proper divisors (711075583).

86517194081 is a wasteful number, since it uses less digits than its factorization.

86517194081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354831.

The product of its (nonzero) digits is 483840, while the sum is 50.

The spelling of 86517194081 in words is "eighty-six billion, five hundred seventeen million, one hundred ninety-four thousand, eighty-one".