86391539136 has 84 divisors (see below), whose sum is σ = 283000868592. Its totient is φ = 24683295744.

The previous prime is 86391539099. The next prime is 86391539153. The reversal of 86391539136 is 63193519368.

86391539136 is a `hidden beast` number, since 8 + 6 + 3 + 91 + 539 + 13 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10709205 + ... + 10717268.

Almost surely, 2^86391539136 is an apocalyptic number.

It is an amenable number.

86391539136 is an abundant number, since it is smaller than the sum of its proper divisors (196609329456).

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

86391539136 is a wasteful number, since it uses less digits than its factorization.

86391539136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21426498 (or 21426485 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 54.

The spelling of 86391539136 in words is "eighty-six billion, three hundred ninety-one million, five hundred thirty-nine thousand, one hundred thirty-six".