9564667428 has 12 divisors (see below), whose sum is σ = 22317557360. Its totient is φ = 3188222472.

The previous prime is 9564667417. The next prime is 9564667471. The reversal of 9564667428 is 8247664659.

It is a tau number, because it is divible by the number of its divisors (12).

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, 398527798 + ... + 398527821.

Almost surely, 2^9564667428 is an apocalyptic number.

It is an amenable number.

9564667428 is an abundant number, since it is smaller than the sum of its proper divisors (12752889932).

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

9564667428 is a wasteful number, since it uses less digits than its factorization.

9564667428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797055626 (or 797055624 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 57.

The square root of 9564667428 is about 97799.1177260818. The cubic root of 9564667428 is about 2122.7065399086.

The spelling of 9564667428 in words is "nine billion, five hundred sixty-four million, six hundred sixty-seven thousand, four hundred twenty-eight".