20436224089 has 2 divisors, whose sum is σ = 20436224090. Its totient is φ = 20436224088.

The previous prime is 20436224077. The next prime is 20436224101. The reversal of 20436224089 is 98042263402.

It is a balanced prime because it is at equal distance from previous prime (20436224077) and next prime (20436224101).

It can be written as a sum of positive squares in only one way, i.e., 10380145689 + 10056078400 = 101883^2 + 100280^2 .

It is a cyclic number.

It is not a de Polignac number, because 20436224089 - 2⁵ = 20436224057 is a prime.

It is not a weakly prime, because it can be changed into another prime (20436224069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10218112044 + 10218112045.

It is an arithmetic number, because the mean of its divisors is an integer number (10218112045).

Almost surely, 2^20436224089 is an apocalyptic number.

It is an amenable number.

20436224089 is a deficient number, since it is larger than the sum of its proper divisors (1).

20436224089 is an equidigital number, since it uses as much as digits as its factorization.

20436224089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 20436224089 in words is "twenty billion, four hundred thirty-six million, two hundred twenty-four thousand, eighty-nine".