20448583484089 has 2 divisors, whose sum is σ = 20448583484090. Its totient is φ = 20448583484088.

The previous prime is 20448583484053. The next prime is 20448583484099. The reversal of 20448583484089 is 98048438584402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10704727588864 + 9743855895225 = 3271808^2 + 3121515^2 .

It is a cyclic number.

It is not a de Polignac number, because 20448583484089 - 2⁹ = 20448583483577 is a prime.

It is a super-2 number, since 2×20448583484089² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20448583484009) 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, 10224291742044 + 10224291742045.

It is an arithmetic number, because the mean of its divisors is an integer number (10224291742045).

Almost surely, 2^{20448583484089} is an apocalyptic number.

It is an amenable number.

20448583484089 is a deficient number, since it is larger than the sum of its proper divisors (1).

20448583484089 is an equidigital number, since it uses as much as digits as its factorization.

20448583484089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 283115520, while the sum is 67.

The spelling of 20448583484089 in words is "twenty trillion, four hundred forty-eight billion, five hundred eighty-three million, four hundred eighty-four thousand, eighty-nine".