86646309567 has 16 divisors (see below), whose sum is σ = 117629820672. Its totient is φ = 56719048320.

The previous prime is 86646309557. The next prime is 86646309569. The reversal of 86646309567 is 76590364668.

It is not a de Polignac number, because 86646309567 - 2¹¹ = 86646307519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86646309567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86646309569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 630538 + ... + 755559.

It is an arithmetic number, because the mean of its divisors is an integer number (7351863792).

Almost surely, 2^86646309567 is an apocalyptic number.

86646309567 is a deficient number, since it is larger than the sum of its proper divisors (30983511105).

86646309567 is a wasteful number, since it uses less digits than its factorization.

86646309567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386478.

The product of its (nonzero) digits is 39191040, while the sum is 60.

The spelling of 86646309567 in words is "eighty-six billion, six hundred forty-six million, three hundred nine thousand, five hundred sixty-seven".