9491271272 has 32 divisors (see below), whose sum is σ = 20343381120. Its totient is φ = 4066699200.

The previous prime is 9491271199. The next prime is 9491271311. The reversal of 9491271272 is 2721721949.

9491271272 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 in 7 ways as a sum of consecutive naturals, for example, 241397 + ... + 277947.

It is an arithmetic number, because the mean of its divisors is an integer number (635730660).

Almost surely, 2^9491271272 is an apocalyptic number.

It is an amenable number.

9491271272 is an abundant number, since it is smaller than the sum of its proper divisors (10852109848).

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

9491271272 is a wasteful number, since it uses less digits than its factorization.

9491271272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41201 (or 41197 counting only the distinct ones).

The product of its digits is 127008, while the sum is 44.

The square root of 9491271272 is about 97423.1557279890. The cubic root of 9491271272 is about 2117.2629380647.

The spelling of 9491271272 in words is "nine billion, four hundred ninety-one million, two hundred seventy-one thousand, two hundred seventy-two".