842663608859 has 8 divisors (see below), whose sum is σ = 862476772080. Its totient is φ = 822860279136.

The previous prime is 842663608849. The next prime is 842663608931. The reversal of 842663608859 is 958806366248.

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-842663608859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 842663608795 and 842663608804.

It is not an unprimeable number, because it can be changed into a prime (842663608849) 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, 2284832 + ... + 2627885.

It is an arithmetic number, because the mean of its divisors is an integer number (107809596510).

Almost surely, 2^842663608859 is an apocalyptic number.

842663608859 is a deficient number, since it is larger than the sum of its proper divisors (19813163221).

842663608859 is a wasteful number, since it uses less digits than its factorization.

842663608859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4916749.

The product of its (nonzero) digits is 119439360, while the sum is 65.

The spelling of 842663608859 in words is "eight hundred forty-two billion, six hundred sixty-three million, six hundred eight thousand, eight hundred fifty-nine".