9725744132 has 24 divisors (see below), whose sum is σ = 19407482136. Its totient is φ = 4224757248.

The previous prime is 9725744129. The next prime is 9725744141. The reversal of 9725744132 is 2314475279.

It can be written as a sum of positive squares in 4 ways, for example, as 2875533376 + 6850210756 = 53624^2 + 82766^2 .

It is a super-2 number, since 2×9725744132² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5500103 + ... + 5501870.

It is an arithmetic number, because the mean of its divisors is an integer number (808645089).

Almost surely, 2^9725744132 is an apocalyptic number.

It is an amenable number.

9725744132 is a deficient number, since it is larger than the sum of its proper divisors (9681738004).

9725744132 is a wasteful number, since it uses less digits than its factorization.

9725744132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11002007 (or 11002005 counting only the distinct ones).

The product of its digits is 423360, while the sum is 44.

The square root of 9725744132 is about 98619.1874434179. The cubic root of 9725744132 is about 2134.5562963007.

The spelling of 9725744132 in words is "nine billion, seven hundred twenty-five million, seven hundred forty-four thousand, one hundred thirty-two".