9619628672 has 32 divisors (see below), whose sum is σ = 19168748820. Its totient is φ = 4808648704.

The previous prime is 9619628671. The next prime is 9619628717. The reversal of 9619628672 is 2768269169.

It is a happy number.

9619628672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8327657536 + 1291971136 = 91256^2 + 35944^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (9619628671) 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 3 ways as a sum of consecutive naturals, for example, 802628 + ... + 814524.

Almost surely, 2^9619628672 is an apocalyptic number.

It is an amenable number.

9619628672 is a deficient number, since it is larger than the sum of its proper divisors (9549120148).

9619628672 is a wasteful number, since it uses less digits than its factorization.

9619628672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18228 (or 18216 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 56.

The square root of 9619628672 is about 98079.7057091833. The cubic root of 9619628672 is about 2126.7646645071.

The spelling of 9619628672 in words is "nine billion, six hundred nineteen million, six hundred twenty-eight thousand, six hundred seventy-two".