420041444377 has 2 divisors, whose sum is σ = 420041444378. Its totient is φ = 420041444376.

The previous prime is 420041444327. The next prime is 420041444387. The reversal of 420041444377 is 773444140024.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 245702627856 + 174338816521 = 495684^2 + 417539^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420041444377 is a prime.

It is not a weakly prime, because it can be changed into another prime (420041444327) 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, 210020722188 + 210020722189.

It is an arithmetic number, because the mean of its divisors is an integer number (210020722189).

Almost surely, 2^420041444377 is an apocalyptic number.

It is an amenable number.

420041444377 is a deficient number, since it is larger than the sum of its proper divisors (1).

420041444377 is an equidigital number, since it uses as much as digits as its factorization.

420041444377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 301056, while the sum is 40.

The spelling of 420041444377 in words is "four hundred twenty billion, forty-one million, four hundred forty-four thousand, three hundred seventy-seven".