86182043081 has 4 divisors (see below), whose sum is σ = 89153837700. Its totient is φ = 83210248464.

The previous prime is 86182043053. The next prime is 86182043083. The reversal of 86182043081 is 18034028168.

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 20594833081 + 65587210000 = 143509^2 + 256100^2 .

It is a cyclic number.

It is not a de Polignac number, because 86182043081 - 2¹⁰ = 86182042057 is a prime.

It is a super-2 number, since 2×86182043081² (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 (86182043083) 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, 1485897266 + ... + 1485897323.

It is an arithmetic number, because the mean of its divisors is an integer number (22288459425).

Almost surely, 2^86182043081 is an apocalyptic number.

It is an amenable number.

86182043081 is a deficient number, since it is larger than the sum of its proper divisors (2971794619).

86182043081 is a wasteful number, since it uses less digits than its factorization.

86182043081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971794618.

The product of its (nonzero) digits is 73728, while the sum is 41.

The spelling of 86182043081 in words is "eighty-six billion, one hundred eighty-two million, forty-three thousand, eighty-one".