20188324853 has 2 divisors, whose sum is σ = 20188324854. Its totient is φ = 20188324852.

The previous prime is 20188324841. The next prime is 20188324901. The reversal of 20188324853 is 35842388102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19403932804 + 784392049 = 139298^2 + 28007^2 .

It is a cyclic number.

It is not a de Polignac number, because 20188324853 - 2²⁸ = 19919889397 is a prime.

It is a super-3 number, since 3×20188324853³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20188324753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10094162426 + 10094162427.

It is an arithmetic number, because the mean of its divisors is an integer number (10094162427).

Almost surely, 2^20188324853 is an apocalyptic number.

It is an amenable number.

20188324853 is a deficient number, since it is larger than the sum of its proper divisors (1).

20188324853 is an equidigital number, since it uses as much as digits as its factorization.

20188324853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 368640, while the sum is 44.

The spelling of 20188324853 in words is "twenty billion, one hundred eighty-eight million, three hundred twenty-four thousand, eight hundred fifty-three".