9613328985 has 24 divisors (see below), whose sum is σ = 17944881864. Its totient is φ = 4732715520.

The previous prime is 9613328971. The next prime is 9613328993. The reversal of 9613328985 is 5898233169.

It can be written as a sum of positive squares in 4 ways, for example, as 6780816 + 9606548169 = 2604^2 + 98013^2 .

It is not a de Polignac number, because 9613328985 - 2⁴ = 9613328969 is a prime.

It is a super-2 number, since 2×9613328985² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8215936 + ... + 8217105.

It is an arithmetic number, because the mean of its divisors is an integer number (747703411).

Almost surely, 2^9613328985 is an apocalyptic number.

It is an amenable number.

9613328985 is a deficient number, since it is larger than the sum of its proper divisors (8331552879).

9613328985 is a wasteful number, since it uses less digits than its factorization.

9613328985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16433065 (or 16433062 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 9613328985 is about 98047.5853093792. The cubic root of 9613328985 is about 2126.3003057151.

The spelling of 9613328985 in words is "nine billion, six hundred thirteen million, three hundred twenty-eight thousand, nine hundred eighty-five".