9649824913 has 2 divisors, whose sum is σ = 9649824914. Its totient is φ = 9649824912.

The previous prime is 9649824887. The next prime is 9649824929. The reversal of 9649824913 is 3194289469.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5168459664 + 4481365249 = 71892^2 + 66943^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9649824913 is a prime.

It is not a weakly prime, because it can be changed into another prime (9649824973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4824912456 + 4824912457.

It is an arithmetic number, because the mean of its divisors is an integer number (4824912457).

Almost surely, 2^9649824913 is an apocalyptic number.

It is an amenable number.

9649824913 is a deficient number, since it is larger than the sum of its proper divisors (1).

9649824913 is an equidigital number, since it uses as much as digits as its factorization.

9649824913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3359232, while the sum is 55.

The square root of 9649824913 is about 98233.5223485344. The cubic root of 9649824913 is about 2128.9876615736.

The spelling of 9649824913 in words is "nine billion, six hundred forty-nine million, eight hundred twenty-four thousand, nine hundred thirteen".