9725090120 has 32 divisors (see below), whose sum is σ = 22415150520. Its totient is φ = 3795156480.

The previous prime is 9725090087. The next prime is 9725090143. The reversal of 9725090120 is 210905279.

It can be written as a sum of positive squares in 4 ways, for example, as 3345234244 + 6379855876 = 57838^2 + 79874^2 .

It is a super-2 number, since 2×9725090120² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2963327 + ... + 2966606.

Almost surely, 2^9725090120 is an apocalyptic number.

It is an amenable number.

9725090120 is an abundant number, since it is smaller than the sum of its proper divisors (12690060400).

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

9725090120 is a wasteful number, since it uses less digits than its factorization.

9725090120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5929985 (or 5929981 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 9725090120 is about 98615.8715420596. The cubic root of 9725090120 is about 2134.5084488316.

Adding to 9725090120 its reverse (210905279), we get a palindrome (9935995399).

The spelling of 9725090120 in words is "nine billion, seven hundred twenty-five million, ninety thousand, one hundred twenty".