23297569409 has 2 divisors, whose sum is σ = 23297569410. Its totient is φ = 23297569408.

The previous prime is 23297569333. The next prime is 23297569411. The reversal of 23297569409 is 90496579232.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12899280625 + 10398288784 = 113575^2 + 101972^2 .

It is a cyclic number.

It is not a de Polignac number, because 23297569409 - 2²⁰ = 23296520833 is a prime.

It is a Sophie Germain prime.

Together with 23297569411, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23297569459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11648784704 + 11648784705.

It is an arithmetic number, because the mean of its divisors is an integer number (11648784705).

Almost surely, 2^23297569409 is an apocalyptic number.

It is an amenable number.

23297569409 is a deficient number, since it is larger than the sum of its proper divisors (1).

23297569409 is an equidigital number, since it uses as much as digits as its factorization.

23297569409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7348320, while the sum is 56.

The spelling of 23297569409 in words is "twenty-three billion, two hundred ninety-seven million, five hundred sixty-nine thousand, four hundred nine".