859846018081 has 8 divisors (see below), whose sum is σ = 865166360040. Its totient is φ = 854529700992.

The previous prime is 859846018033. The next prime is 859846018123. The reversal of 859846018081 is 180810648958.

It can be written as a sum of positive squares in 4 ways, for example, as 137670681600 + 722175336481 = 371040^2 + 849809^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 859846018081 - 2²³ = 859837629473 is a prime.

It is a super-2 number, since 2×859846018081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (859846018781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 577066 + ... + 1432723.

It is an arithmetic number, because the mean of its divisors is an integer number (108145795005).

Almost surely, 2^859846018081 is an apocalyptic number.

It is an amenable number.

859846018081 is a deficient number, since it is larger than the sum of its proper divisors (5320341959).

859846018081 is a wasteful number, since it uses less digits than its factorization.

859846018081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012435.

The product of its (nonzero) digits is 4423680, while the sum is 58.

The spelling of 859846018081 in words is "eight hundred fifty-nine billion, eight hundred forty-six million, eighteen thousand, eighty-one".