9642825789 has 16 divisors (see below), whose sum is σ = 12937996800. Its totient is φ = 6388184880.

The previous prime is 9642825779. The next prime is 9642825821. The reversal of 9642825789 is 9875282469.

It is not a de Polignac number, because 9642825789 - 2⁹ = 9642825277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9642825749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483954 + ... + 503484.

It is an arithmetic number, because the mean of its divisors is an integer number (808624800).

Almost surely, 2^9642825789 is an apocalyptic number.

It is an amenable number.

9642825789 is a deficient number, since it is larger than the sum of its proper divisors (3295171011).

9642825789 is a wasteful number, since it uses less digits than its factorization.

9642825789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20560.

The product of its digits is 17418240, while the sum is 60.

The square root of 9642825789 is about 98197.8909600405. The cubic root of 9642825789 is about 2128.4728110329.

The spelling of 9642825789 in words is "nine billion, six hundred forty-two million, eight hundred twenty-five thousand, seven hundred eighty-nine".