86185444147 has 4 divisors (see below), whose sum is σ = 94020484536. Its totient is φ = 78350403760.

The previous prime is 86185444109. The next prime is 86185444151. The reversal of 86185444147 is 74144458168.

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

It is a cyclic number.

It is not a de Polignac number, because 86185444147 - 2¹¹ = 86185442099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86185444094 and 86185444103.

It is not an unprimeable number, because it can be changed into a prime (86185444547) 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, 3917520178 + ... + 3917520199.

It is an arithmetic number, because the mean of its divisors is an integer number (23505121134).

Almost surely, 2^86185444147 is an apocalyptic number.

86185444147 is a deficient number, since it is larger than the sum of its proper divisors (7835040389).

86185444147 is a wasteful number, since it uses less digits than its factorization.

86185444147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7835040388.

The product of its digits is 3440640, while the sum is 52.

The spelling of 86185444147 in words is "eighty-six billion, one hundred eighty-five million, four hundred forty-four thousand, one hundred forty-seven".