420064285813 has 2 divisors, whose sum is σ = 420064285814. Its totient is φ = 420064285812.

The previous prime is 420064285801. The next prime is 420064285843. The reversal of 420064285813 is 318582460024.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 334647209169 + 85417076644 = 578487^2 + 292262^2 .

It is a cyclic number.

It is not a de Polignac number, because 420064285813 - 2⁹ = 420064285301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420064285813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420064285843) 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, 210032142906 + 210032142907.

It is an arithmetic number, because the mean of its divisors is an integer number (210032142907).

Almost surely, 2^420064285813 is an apocalyptic number.

It is an amenable number.

420064285813 is a deficient number, since it is larger than the sum of its proper divisors (1).

420064285813 is an equidigital number, since it uses as much as digits as its factorization.

420064285813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 368640, while the sum is 43.

The spelling of 420064285813 in words is "four hundred twenty billion, sixty-four million, two hundred eighty-five thousand, eight hundred thirteen".