86185254319 has 4 divisors (see below), whose sum is σ = 86185968120. Its totient is φ = 86184540520.

The previous prime is 86185254317. The next prime is 86185254341. The reversal of 86185254319 is 91345258168.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 86185254319 - 2¹ = 86185254317 is a prime.

It is a super-2 number, since 2×86185254319² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86185254317) 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, 125989 + ... + 433870.

It is an arithmetic number, because the mean of its divisors is an integer number (21546492030).

Almost surely, 2^86185254319 is an apocalyptic number.

86185254319 is a deficient number, since it is larger than the sum of its proper divisors (713801).

86185254319 is a wasteful number, since it uses less digits than its factorization.

86185254319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713800.

The product of its digits is 2073600, while the sum is 52.

The spelling of 86185254319 in words is "eighty-six billion, one hundred eighty-five million, two hundred fifty-four thousand, three hundred nineteen".