420402444204049 has 2 divisors, whose sum is σ = 420402444204050. Its totient is φ = 420402444204048.

The previous prime is 420402444204019. The next prime is 420402444204077. The reversal of 420402444204049 is 940402444204024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 376994375493649 + 43408068710400 = 19416343^2 + 6588480^2 .

It is a cyclic number.

It is not a de Polignac number, because 420402444204049 - 2¹⁹ = 420402443679761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420402444203996 and 420402444204014.

It is not a weakly prime, because it can be changed into another prime (420402444204019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210201222102024 + 210201222102025.

It is an arithmetic number, because the mean of its divisors is an integer number (210201222102025).

Almost surely, 2^{420402444204049} is an apocalyptic number.

It is an amenable number.

420402444204049 is a deficient number, since it is larger than the sum of its proper divisors (1).

420402444204049 is an equidigital number, since it uses as much as digits as its factorization.

420402444204049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1179648, while the sum is 43.

The spelling of 420402444204049 in words is "four hundred twenty trillion, four hundred two billion, four hundred forty-four million, two hundred four thousand, forty-nine".