9645339136 has 20 divisors (see below), whose sum is σ = 19271840742. Its totient is φ = 4822669312.

The previous prime is 9645339127. The next prime is 9645339139. The reversal of 9645339136 is 6319335469.

It can be written as a sum of positive squares in only one way, i.e., 7440097536 + 2205241600 = 86256^2 + 46960^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9645339136.

It is not an unprimeable number, because it can be changed into a prime (9645339139) by changing a digit.

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 as a sum of consecutive naturals, namely, 9418765 + ... + 9419788.

Almost surely, 2^9645339136 is an apocalyptic number.

It is an amenable number.

9645339136 is a deficient number, since it is larger than the sum of its proper divisors (9626501606).

9645339136 is an equidigital number, since it uses as much as digits as its factorization.

9645339136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18838571 (or 18838555 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 49.

The square root of 9645339136 is about 98210.6874835931. The cubic root of 9645339136 is about 2128.6577196948.

The spelling of 9645339136 in words is "nine billion, six hundred forty-five million, three hundred thirty-nine thousand, one hundred thirty-six".