86440210663 has 4 divisors (see below), whose sum is σ = 88071158088. Its totient is φ = 84809263240.

The previous prime is 86440210639. The next prime is 86440210673. The reversal of 86440210663 is 36601204468.

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 86440210663 - 2⁵ = 86440210631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86440210673) 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, 815473633 + ... + 815473738.

It is an arithmetic number, because the mean of its divisors is an integer number (22017789522).

Almost surely, 2^86440210663 is an apocalyptic number.

86440210663 is a deficient number, since it is larger than the sum of its proper divisors (1630947425).

86440210663 is a wasteful number, since it uses less digits than its factorization.

86440210663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630947424.

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 86440210663 in words is "eighty-six billion, four hundred forty million, two hundred ten thousand, six hundred sixty-three".