86665742886 has 32 divisors (see below), whose sum is σ = 176407573248. Its totient is φ = 28378838880.

The previous prime is 86665742881. The next prime is 86665742951. The reversal of 86665742886 is 68824756668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86665742881) 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 15 ways as a sum of consecutive naturals, for example, 249220 + ... + 485223.

It is an arithmetic number, because the mean of its divisors is an integer number (5512736664).

Almost surely, 2^86665742886 is an apocalyptic number.

86665742886 is an abundant number, since it is smaller than the sum of its proper divisors (89741830362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86665742886 is a wasteful number, since it uses less digits than its factorization.

86665742886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734796.

The product of its digits is 185794560, while the sum is 66.

The spelling of 86665742886 in words is "eighty-six billion, six hundred sixty-five million, seven hundred forty-two thousand, eight hundred eighty-six".