9969545513 has 2 divisors, whose sum is σ = 9969545514. Its totient is φ = 9969545512.

The previous prime is 9969545507. The next prime is 9969545543. The reversal of 9969545513 is 3155459699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9728271424 + 241274089 = 98632^2 + 15533^2 .

It is a cyclic number.

It is not a de Polignac number, because 9969545513 - 2⁴ = 9969545497 is a prime.

It is not a weakly prime, because it can be changed into another prime (9969545543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4984772756 + 4984772757.

It is an arithmetic number, because the mean of its divisors is an integer number (4984772757).

Almost surely, 2^9969545513 is an apocalyptic number.

It is an amenable number.

9969545513 is a deficient number, since it is larger than the sum of its proper divisors (1).

9969545513 is an equidigital number, since it uses as much as digits as its factorization.

9969545513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6561000, while the sum is 56.

The square root of 9969545513 is about 99847.6114536547. The cubic root of 9969545513 is about 2152.2453926192.

The spelling of 9969545513 in words is "nine billion, nine hundred sixty-nine million, five hundred forty-five thousand, five hundred thirteen".