86721084584568 has 96 divisors (see below), whose sum is σ = 270931025439360. Its totient is φ = 24545887744320.

The previous prime is 86721084584513. The next prime is 86721084584647. The reversal of 86721084584568 is 86548548012768.

It is a happy number.

86721084584568 is a `hidden beast` number, since 8 + 6 + 7 + 2 + 1 + 0 + 8 + 4 + 58 + 4 + 568 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 86721084584496 and 86721084584505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 803991138 + ... + 804098993.

It is an arithmetic number, because the mean of its divisors is an integer number (2822198181660).

Almost surely, 2^{86721084584568} is an apocalyptic number.

It is an amenable number.

86721084584568 is an abundant number, since it is smaller than the sum of its proper divisors (184209940854792).

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

86721084584568 is a wasteful number, since it uses less digits than its factorization.

86721084584568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608090257 (or 1608090250 counting only the distinct ones).

The product of its (nonzero) digits is 825753600, while the sum is 72.

The spelling of 86721084584568 in words is "eighty-six trillion, seven hundred twenty-one billion, eighty-four million, five hundred eighty-four thousand, five hundred sixty-eight".