86459771784 has 32 divisors (see below), whose sum is σ = 216616302720. Its totient is φ = 28757674176.

The previous prime is 86459771773. The next prime is 86459771803. The reversal of 86459771784 is 48717795468.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3879267 + ... + 3901490.

It is an arithmetic number, because the mean of its divisors is an integer number (6769259460).

Almost surely, 2^86459771784 is an apocalyptic number.

It is an amenable number.

86459771784 is an abundant number, since it is smaller than the sum of its proper divisors (130156530936).

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

86459771784 is a wasteful number, since it uses less digits than its factorization.

86459771784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7781229 (or 7781225 counting only the distinct ones).

The product of its digits is 94832640, while the sum is 66.

The spelling of 86459771784 in words is "eighty-six billion, four hundred fifty-nine million, seven hundred seventy-one thousand, seven hundred eighty-four".