9725744133 has 48 divisors (see below), whose sum is σ = 16182531456. Its totient is φ = 5513650560.

The previous prime is 9725744129. The next prime is 9725744141. The reversal of 9725744133 is 3314475279.

9725744133 is a `hidden beast` number, since 9 + 7 + 2 + 574 + 41 + 33 = 666.

It is not a de Polignac number, because 9725744133 - 2² = 9725744129 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9725746133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6692835 + ... + 6694287.

It is an arithmetic number, because the mean of its divisors is an integer number (337136072).

Almost surely, 2^9725744133 is an apocalyptic number.

It is an amenable number.

9725744133 is a deficient number, since it is larger than the sum of its proper divisors (6456787323).

9725744133 is a wasteful number, since it uses less digits than its factorization.

9725744133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234 (or 2231 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 9725744133 is about 98619.1874484879. The cubic root of 9725744133 is about 2134.5562963739.

The spelling of 9725744133 in words is "nine billion, seven hundred twenty-five million, seven hundred forty-four thousand, one hundred thirty-three".