20042422408049 has 2 divisors, whose sum is σ = 20042422408050. Its totient is φ = 20042422408048.

The previous prime is 20042422408009. The next prime is 20042422408103. The reversal of 20042422408049 is 94080422424002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10899690955024 + 9142731453025 = 3301468^2 + 3023695^2 .

It is a cyclic number.

It is not a de Polignac number, because 20042422408049 - 2¹⁶ = 20042422342513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20042422407997 and 20042422408015.

It is not a weakly prime, because it can be changed into another prime (20042422408009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021211204024 + 10021211204025.

It is an arithmetic number, because the mean of its divisors is an integer number (10021211204025).

Almost surely, 2^{20042422408049} is an apocalyptic number.

It is an amenable number.

20042422408049 is a deficient number, since it is larger than the sum of its proper divisors (1).

20042422408049 is an equidigital number, since it uses as much as digits as its factorization.

20042422408049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 294912, while the sum is 41.

The spelling of 20042422408049 in words is "twenty trillion, forty-two billion, four hundred twenty-two million, four hundred eight thousand, forty-nine".