842079561668 has 24 divisors (see below), whose sum is σ = 1521390958080. Its totient is φ = 407400269760.

The previous prime is 842079561607. The next prime is 842079561731. The reversal of 842079561668 is 866165970248.

842079561668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a self number, because there is not a number n which added to its sum of digits gives 842079561668.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407705 + ... + 1360287.

It is an arithmetic number, because the mean of its divisors is an integer number (63391289920).

Almost surely, 2^842079561668 is an apocalyptic number.

It is an amenable number.

842079561668 is a deficient number, since it is larger than the sum of its proper divisors (679311396412).

842079561668 is a wasteful number, since it uses less digits than its factorization.

842079561668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959747 (or 959745 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 62.

The spelling of 842079561668 in words is "eight hundred forty-two billion, seventy-nine million, five hundred sixty-one thousand, six hundred sixty-eight".