9426643568 has 20 divisors (see below), whose sum is σ = 18296125848. Its totient is φ = 4705062720.

The previous prime is 9426643543. The next prime is 9426643571. The reversal of 9426643568 is 8653466249.

9426643568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506771 + ... + 525042.

Almost surely, 2^9426643568 is an apocalyptic number.

It is an amenable number.

9426643568 is a deficient number, since it is larger than the sum of its proper divisors (8869482280).

9426643568 is a wasteful number, since it uses less digits than its factorization.

9426643568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032392 (or 1032386 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 53.

The square root of 9426643568 is about 97090.9036315967. The cubic root of 9426643568 is about 2112.4463863148.

The spelling of 9426643568 in words is "nine billion, four hundred twenty-six million, six hundred forty-three thousand, five hundred sixty-eight".