20441420089 has 2 divisors, whose sum is σ = 20441420090. Its totient is φ = 20441420088.

The previous prime is 20441420059. The next prime is 20441420137. The reversal of 20441420089 is 98002414402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20201789689 + 239630400 = 142133^2 + 15480^2 .

It is a cyclic number.

It is not a de Polignac number, because 20441420089 - 2⁹ = 20441419577 is a prime.

It is not a weakly prime, because it can be changed into another prime (20441420029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10220710044 + 10220710045.

It is an arithmetic number, because the mean of its divisors is an integer number (10220710045).

Almost surely, 2^20441420089 is an apocalyptic number.

It is an amenable number.

20441420089 is a deficient number, since it is larger than the sum of its proper divisors (1).

20441420089 is an equidigital number, since it uses as much as digits as its factorization.

20441420089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 20441420089 in words is "twenty billion, four hundred forty-one million, four hundred twenty thousand, eighty-nine".