420630397237 has 2 divisors, whose sum is σ = 420630397238. Its totient is φ = 420630397236.

The previous prime is 420630397207. The next prime is 420630397241. The reversal of 420630397237 is 732793036024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 410130091396 + 10500305841 = 640414^2 + 102471^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420630397237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420630397207) 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, 210315198618 + 210315198619.

It is an arithmetic number, because the mean of its divisors is an integer number (210315198619).

Almost surely, 2^420630397237 is an apocalyptic number.

It is an amenable number.

420630397237 is a deficient number, since it is larger than the sum of its proper divisors (1).

420630397237 is an equidigital number, since it uses as much as digits as its factorization.

420630397237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 46.

The spelling of 420630397237 in words is "four hundred twenty billion, six hundred thirty million, three hundred ninety-seven thousand, two hundred thirty-seven".