86634686581862 has 32 divisors (see below), whose sum is σ = 134287619204352. Its totient is φ = 41886609598944.

The previous prime is 86634686581841. The next prime is 86634686581867. The reversal of 86634686581862 is 26818568643668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86634686581867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411486383 + ... + 411696869.

It is an arithmetic number, because the mean of its divisors is an integer number (4196488100136).

Almost surely, 2^{86634686581862} is an apocalyptic number.

86634686581862 is a deficient number, since it is larger than the sum of its proper divisors (47652932622490).

86634686581862 is a wasteful number, since it uses less digits than its factorization.

86634686581862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244812.

The product of its digits is 3822059520, while the sum is 77.

The spelling of 86634686581862 in words is "eighty-six trillion, six hundred thirty-four billion, six hundred eighty-six million, five hundred eighty-one thousand, eight hundred sixty-two".