86855979161 has 8 divisors (see below), whose sum is σ = 100191677760. Its totient is φ = 73752205968.

The previous prime is 86855979143. The next prime is 86855979163. The reversal of 86855979161 is 16197955868.

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

It is not a de Polignac number, because 86855979161 - 2¹⁰ = 86855978137 is a prime.

It is a super-2 number, since 2×86855979161² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86855979163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57980546 + ... + 57982043.

It is an arithmetic number, because the mean of its divisors is an integer number (12523959720).

Almost surely, 2^86855979161 is an apocalyptic number.

It is an amenable number.

86855979161 is a deficient number, since it is larger than the sum of its proper divisors (13335698599).

86855979161 is a wasteful number, since it uses less digits than its factorization.

86855979161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115962703.

The product of its digits is 32659200, while the sum is 65.

The spelling of 86855979161 in words is "eighty-six billion, eight hundred fifty-five million, nine hundred seventy-nine thousand, one hundred sixty-one".