20338584793 has 2 divisors, whose sum is σ = 20338584794. Its totient is φ = 20338584792.

The previous prime is 20338584757. The next prime is 20338584817. The reversal of 20338584793 is 39748583302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15131952144 + 5206632649 = 123012^2 + 72157^2 .

It is a cyclic number.

It is not a de Polignac number, because 20338584793 - 2²⁹ = 19801713881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20338584793.

It is not a weakly prime, because it can be changed into another prime (20338584733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10169292396 + 10169292397.

It is an arithmetic number, because the mean of its divisors is an integer number (10169292397).

Almost surely, 2^20338584793 is an apocalyptic number.

It is an amenable number.

20338584793 is a deficient number, since it is larger than the sum of its proper divisors (1).

20338584793 is an equidigital number, since it uses as much as digits as its factorization.

20338584793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 20338584793 in words is "twenty billion, three hundred thirty-eight million, five hundred eighty-four thousand, seven hundred ninety-three".