86185445512 has 8 divisors (see below), whose sum is σ = 161597710350. Its totient is φ = 43092722752.

The previous prime is 86185445503. The next prime is 86185445519. The reversal of 86185445512 is 21554458168.

It can be written as a sum of positive squares in only one way, i.e., 48142503396 + 38042942116 = 219414^2 + 195046^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (86185445519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5386590337 + ... + 5386590352.

Almost surely, 2^86185445512 is an apocalyptic number.

It is an amenable number.

86185445512 is a deficient number, since it is larger than the sum of its proper divisors (75412264838).

86185445512 is a wasteful number, since it uses less digits than its factorization.

86185445512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10773180695 (or 10773180691 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 49.

The spelling of 86185445512 in words is "eighty-six billion, one hundred eighty-five million, four hundred forty-five thousand, five hundred twelve".