9630640181 has 16 divisors (see below), whose sum is σ = 10301256000. Its totient is φ = 8977552128.

The previous prime is 9630640171. The next prime is 9630640231. The reversal of 9630640181 is 1810460369.

9630640181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 9630640181 - 2¹⁴ = 9630623797 is a prime.

It is a super-3 number, since 3×9630640181³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9630640171) 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 15 ways as a sum of consecutive naturals, for example, 287021 + ... + 318813.

It is an arithmetic number, because the mean of its divisors is an integer number (643828500).

Almost surely, 2^9630640181 is an apocalyptic number.

It is an amenable number.

9630640181 is a deficient number, since it is larger than the sum of its proper divisors (670615819).

9630640181 is a wasteful number, since it uses less digits than its factorization.

9630640181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32068.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 9630640181 is about 98135.8251659403. The cubic root of 9630640181 is about 2127.5758516786.

The spelling of 9630640181 in words is "nine billion, six hundred thirty million, six hundred forty thousand, one hundred eighty-one".