20444534179 has 2 divisors, whose sum is σ = 20444534180. Its totient is φ = 20444534178.

The previous prime is 20444534177. The next prime is 20444534221. The reversal of 20444534179 is 97143544402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20444534179 - 2¹ = 20444534177 is a prime.

Together with 20444534177, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20444534171) 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, 10222267089 + 10222267090.

It is an arithmetic number, because the mean of its divisors is an integer number (10222267090).

Almost surely, 2^20444534179 is an apocalyptic number.

20444534179 is a deficient number, since it is larger than the sum of its proper divisors (1).

20444534179 is an equidigital number, since it uses as much as digits as its factorization.

20444534179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 20444534179 in words is "twenty billion, four hundred forty-four million, five hundred thirty-four thousand, one hundred seventy-nine".