20544884950459 has 2 divisors, whose sum is σ = 20544884950460. Its totient is φ = 20544884950458.

The previous prime is 20544884950423. The next prime is 20544884950477. The reversal of 20544884950459 is 95405948844502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20544884950459 - 2¹⁷ = 20544884819387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20544884950394 and 20544884950403.

It is not a weakly prime, because it can be changed into another prime (20544884050459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10272442475229 + 10272442475230.

It is an arithmetic number, because the mean of its divisors is an integer number (10272442475230).

Almost surely, 2^{20544884950459} is an apocalyptic number.

20544884950459 is a deficient number, since it is larger than the sum of its proper divisors (1).

20544884950459 is an equidigital number, since it uses as much as digits as its factorization.

20544884950459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776000, while the sum is 67.

The spelling of 20544884950459 in words is "twenty trillion, five hundred forty-four billion, eight hundred eighty-four million, nine hundred fifty thousand, four hundred fifty-nine".