19585472306399 has 2 divisors, whose sum is σ = 19585472306400. Its totient is φ = 19585472306398.

The previous prime is 19585472306381. The next prime is 19585472306443. The reversal of 19585472306399 is 99360327458591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19585472306399 - 2⁸ = 19585472306143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19585472306329) 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, 9792736153199 + 9792736153200.

It is an arithmetic number, because the mean of its divisors is an integer number (9792736153200).

It is a 1-persistent number, because it is pandigital, but 2⋅19585472306399 = 39170944612798 is not.

Almost surely, 2^{19585472306399} is an apocalyptic number.

19585472306399 is a deficient number, since it is larger than the sum of its proper divisors (1).

19585472306399 is an equidigital number, since it uses as much as digits as its factorization.

19585472306399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 440899200, while the sum is 71.

The spelling of 19585472306399 in words is "nineteen trillion, five hundred eighty-five billion, four hundred seventy-two million, three hundred six thousand, three hundred ninety-nine".