86187264365 has 4 divisors (see below), whose sum is σ = 103424717244. Its totient is φ = 68949811488.

The previous prime is 86187264329. The next prime is 86187264367. The reversal of 86187264365 is 56346278168.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40207468324 + 45979796041 = 200518^2 + 214429^2 .

It is a cyclic number.

It is not a de Polignac number, because 86187264365 - 2¹⁸ = 86187002221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 86187264365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86187264367) 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, 8618726432 + ... + 8618726441.

It is an arithmetic number, because the mean of its divisors is an integer number (25856179311).

Almost surely, 2^86187264365 is an apocalyptic number.

It is an amenable number.

86187264365 is a deficient number, since it is larger than the sum of its proper divisors (17237452879).

86187264365 is a wasteful number, since it uses less digits than its factorization.

86187264365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17237452878.

The product of its digits is 11612160, while the sum is 56.

The spelling of 86187264365 in words is "eighty-six billion, one hundred eighty-seven million, two hundred sixty-four thousand, three hundred sixty-five".