86581774895617 has 8 divisors (see below), whose sum is σ = 88424346471552. Its totient is φ = 84739220242800.

The previous prime is 86581774895521. The next prime is 86581774895639. The reversal of 86581774895617 is 71659847718568.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86581774895617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86581774895647) 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, 6391242 + ... + 14629132.

It is an arithmetic number, because the mean of its divisors is an integer number (11053043308944).

Almost surely, 2^{86581774895617} is an apocalyptic number.

It is an amenable number.

86581774895617 is a deficient number, since it is larger than the sum of its proper divisors (1842571575935).

86581774895617 is a wasteful number, since it uses less digits than its factorization.

86581774895617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8461559.

The product of its digits is 5689958400, while the sum is 82.

The spelling of 86581774895617 in words is "eighty-six trillion, five hundred eighty-one billion, seven hundred seventy-four million, eight hundred ninety-five thousand, six hundred seventeen".