9639470872 has 16 divisors (see below), whose sum is σ = 18075450240. Its totient is φ = 4819350816.

The previous prime is 9639470861. The next prime is 9639470879. The reversal of 9639470872 is 2780749369.

9639470872 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 not an unprimeable number, because it can be changed into a prime (9639470879) by changing a digit.

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, 77833 + ... + 159175.

It is an arithmetic number, because the mean of its divisors is an integer number (1129715640).

Almost surely, 2^9639470872 is an apocalyptic number.

It is an amenable number.

9639470872 is a deficient number, since it is larger than the sum of its proper divisors (8435979368).

9639470872 is a wasteful number, since it uses less digits than its factorization.

9639470872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96162 (or 96158 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 55.

The square root of 9639470872 is about 98180.8070449617. The cubic root of 9639470872 is about 2128.2259374131.

The spelling of 9639470872 in words is "nine billion, six hundred thirty-nine million, four hundred seventy thousand, eight hundred seventy-two".