86579340205 has 8 divisors (see below), whose sum is σ = 110006691192. Its totient is φ = 65189150208.

The previous prime is 86579340203. The next prime is 86579340227. The reversal of 86579340205 is 50204397568.

It can be written as a sum of positive squares in 4 ways, for example, as 10406652169 + 76172688036 = 102013^2 + 275994^2 .

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 86579340205 - 2¹ = 86579340203 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 (86579340203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509290152 + ... + 509290321.

It is an arithmetic number, because the mean of its divisors is an integer number (13750836399).

Almost surely, 2^86579340205 is an apocalyptic number.

86579340205 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

86579340205 is a deficient number, since it is larger than the sum of its proper divisors (23427350987).

86579340205 is a wasteful number, since it uses less digits than its factorization.

86579340205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018580495.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 86579340205 in words is "eighty-six billion, five hundred seventy-nine million, three hundred forty thousand, two hundred five".