844668042608 has 20 divisors (see below), whose sum is σ = 1762432358568. Its totient is φ = 389846788800.

The previous prime is 844668042577. The next prime is 844668042697. The reversal of 844668042608 is 806240866448.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2030451818 + ... + 2030452233.

Almost surely, 2^844668042608 is an apocalyptic number.

It is an amenable number.

844668042608 is an abundant number, since it is smaller than the sum of its proper divisors (917764315960).

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

844668042608 is a wasteful number, since it uses less digits than its factorization.

844668042608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4060904072 (or 4060904066 counting only the distinct ones).

The product of its (nonzero) digits is 14155776, while the sum is 56.

The spelling of 844668042608 in words is "eight hundred forty-four billion, six hundred sixty-eight million, forty-two thousand, six hundred eight".