9939470872 has 32 divisors (see below), whose sum is σ = 19165410000. Its totient is φ = 4830588928.

The previous prime is 9939470789. The next prime is 9939470917. The reversal of 9939470872 is 2780749399.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76297 + ... + 160312.

Almost surely, 2^9939470872 is an apocalyptic number.

It is an amenable number.

9939470872 is a deficient number, since it is larger than the sum of its proper divisors (9225939128).

9939470872 is a wasteful number, since it uses less digits than its factorization.

9939470872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236763 (or 236759 counting only the distinct ones).

The product of its (nonzero) digits is 6858432, while the sum is 58.

The square root of 9939470872 is about 99696.8949967851. The cubic root of 9939470872 is about 2150.0790215773.

The spelling of 9939470872 in words is "nine billion, nine hundred thirty-nine million, four hundred seventy thousand, eight hundred seventy-two".