86634643668 has 24 divisors (see below), whose sum is σ = 202161126720. Its totient is φ = 28876268160.

The previous prime is 86634643639. The next prime is 86634643699.

86634643668 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×86634643668² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 51813 + ... + 419468.

It is an arithmetic number, because the mean of its divisors is an integer number (8423380280).

Almost surely, 2^86634643668 is an apocalyptic number.

It is an amenable number.

86634643668 is an abundant number, since it is smaller than the sum of its proper divisors (115526483052).

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

86634643668 is a wasteful number, since it uses less digits than its factorization.

86634643668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486607 (or 486605 counting only the distinct ones).

The product of its digits is 71663616, while the sum is 60.

The spelling of 86634643668 in words is "eighty-six billion, six hundred thirty-four million, six hundred forty-three thousand, six hundred sixty-eight".