561968672 has 24 divisors (see below), whose sum is σ = 1108126656. Its totient is φ = 280539712.

The previous prime is 561968639. The next prime is 561968773. The reversal of 561968672 is 276869165.

561968672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 561968672.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7133 + ... + 34275.

It is an arithmetic number, because the mean of its divisors is an integer number (46171944).

Almost surely, 2^561968672 is an apocalyptic number.

It is an amenable number.

561968672 is a deficient number, since it is larger than the sum of its proper divisors (546157984).

561968672 is a wasteful number, since it uses less digits than its factorization.

561968672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27800 (or 27792 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 50.

The square root of 561968672 is about 23705.8784270906. The cubic root of 561968672 is about 825.2218182851.

The spelling of 561968672 in words is "five hundred sixty-one million, nine hundred sixty-eight thousand, six hundred seventy-two".