86181564687 has 8 divisors (see below), whose sum is σ = 115679953200. Its totient is φ = 57068776320.

The previous prime is 86181564653. The next prime is 86181564691. The reversal of 86181564687 is 78646518168.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86181564687 - 2¹¹ = 86181562639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86181564687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86181564607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96399514 + ... + 96400407.

It is an arithmetic number, because the mean of its divisors is an integer number (14459994150).

Almost surely, 2^86181564687 is an apocalyptic number.

86181564687 is a deficient number, since it is larger than the sum of its proper divisors (29498388513).

86181564687 is a wasteful number, since it uses less digits than its factorization.

86181564687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192800073.

The product of its digits is 15482880, while the sum is 60.

The spelling of 86181564687 in words is "eighty-six billion, one hundred eighty-one million, five hundred sixty-four thousand, six hundred eighty-seven".