23309967746789 has 2 divisors, whose sum is σ = 23309967746790. Its totient is φ = 23309967746788.

The previous prime is 23309967746777. The next prime is 23309967746839. The reversal of 23309967746789 is 98764776990332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19800497550625 + 3509470196164 = 4449775^2 + 1873358^2 .

It is a cyclic number.

It is not a de Polignac number, because 23309967746789 - 2⁴ = 23309967746773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23309967746089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11654983873394 + 11654983873395.

It is an arithmetic number, because the mean of its divisors is an integer number (11654983873395).

Almost surely, 2^{23309967746789} is an apocalyptic number.

It is an amenable number.

23309967746789 is a deficient number, since it is larger than the sum of its proper divisors (1).

23309967746789 is an equidigital number, since it uses as much as digits as its factorization.

23309967746789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184974592, while the sum is 80.

The spelling of 23309967746789 in words is "twenty-three trillion, three hundred nine billion, nine hundred sixty-seven million, seven hundred forty-six thousand, seven hundred eighty-nine".