23206534447573 has 2 divisors, whose sum is σ = 23206534447574. Its totient is φ = 23206534447572.

The previous prime is 23206534447571. The next prime is 23206534447643. The reversal of 23206534447573 is 37574443560232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19290164691249 + 3916369756324 = 4392057^2 + 1978982^2 .

It is a cyclic number.

It is not a de Polignac number, because 23206534447573 - 2¹ = 23206534447571 is a prime.

Together with 23206534447571, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23206534447571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11603267223786 + 11603267223787.

It is an arithmetic number, because the mean of its divisors is an integer number (11603267223787).

Almost surely, 2^{23206534447573} is an apocalyptic number.

It is an amenable number.

23206534447573 is a deficient number, since it is larger than the sum of its proper divisors (1).

23206534447573 is an equidigital number, since it uses as much as digits as its factorization.

23206534447573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50803200, while the sum is 55.

The spelling of 23206534447573 in words is "twenty-three trillion, two hundred six billion, five hundred thirty-four million, four hundred forty-seven thousand, five hundred seventy-three".