20202044189 has 2 divisors, whose sum is σ = 20202044190. Its totient is φ = 20202044188.

The previous prime is 20202044179. The next prime is 20202044201. The reversal of 20202044189 is 98144020202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12846408964 + 7355635225 = 113342^2 + 85765^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202044189 - 2¹² = 20202040093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20202044179) 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, 10101022094 + 10101022095.

It is an arithmetic number, because the mean of its divisors is an integer number (10101022095).

Almost surely, 2^20202044189 is an apocalyptic number.

It is an amenable number.

20202044189 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202044189 is an equidigital number, since it uses as much as digits as its factorization.

20202044189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 32.

The spelling of 20202044189 in words is "twenty billion, two hundred two million, forty-four thousand, one hundred eighty-nine".