9981294272 has 14 divisors (see below), whose sum is σ = 19806630948. Its totient is φ = 4990647104.

The previous prime is 9981294259. The next prime is 9981294283. The reversal of 9981294272 is 2724921899.

9981294272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 as a sum of consecutive naturals, namely, 77978798 + ... + 77978925.

Almost surely, 2^9981294272 is an apocalyptic number.

It is an amenable number.

9981294272 is a deficient number, since it is larger than the sum of its proper divisors (9825336676).

9981294272 is a wasteful number, since it uses less digits than its factorization.

9981294272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155957735 (or 155957725 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 53.

The square root of 9981294272 is about 99906.4275810120. The cubic root of 9981294272 is about 2153.0905092436.

The spelling of 9981294272 in words is "nine billion, nine hundred eighty-one million, two hundred ninety-four thousand, two hundred seventy-two".