9720064125 has 128 divisors (see below), whose sum is σ = 18995558400. Its totient is φ = 4896460800.

The previous prime is 9720064103. The next prime is 9720064127. The reversal of 9720064125 is 5214600279.

9720064125 is a `hidden beast` number, since 9 + 7 + 2 + 0 + 0 + 641 + 2 + 5 = 666.

9720064125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9720064125 - 2²⁹ = 9183193213 is a prime.

It is a super-2 number, since 2×9720064125² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9720064125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9720064127) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 4599069 + ... + 4601181.

It is an arithmetic number, because the mean of its divisors is an integer number (148402800).

Almost surely, 2^9720064125 is an apocalyptic number.

It is an amenable number.

9720064125 is a deficient number, since it is larger than the sum of its proper divisors (9275494275).

9720064125 is a wasteful number, since it uses less digits than its factorization.

9720064125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2213 (or 2197 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 9720064125 is about 98590.3855606620. The cubic root of 9720064125 is about 2134.1406758068.

The spelling of 9720064125 in words is "nine billion, seven hundred twenty million, sixty-four thousand, one hundred twenty-five".