10961364209 has 2 divisors, whose sum is σ = 10961364210. Its totient is φ = 10961364208.

The previous prime is 10961364203. The next prime is 10961364223. The reversal of 10961364209 is 90246316901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10935303184 + 26061025 = 104572^2 + 5105^2 .

It is a cyclic number.

It is not a de Polignac number, because 10961364209 - 2⁸ = 10961363953 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (10961364203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5480682104 + 5480682105.

It is an arithmetic number, because the mean of its divisors is an integer number (5480682105).

Almost surely, 2^10961364209 is an apocalyptic number.

It is an amenable number.

10961364209 is a deficient number, since it is larger than the sum of its proper divisors (1).

10961364209 is an equidigital number, since it uses as much as digits as its factorization.

10961364209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 10961364209 in words is "ten billion, nine hundred sixty-one million, three hundred sixty-four thousand, two hundred nine".