420352005169 has 2 divisors, whose sum is σ = 420352005170. Its totient is φ = 420352005168.

The previous prime is 420352005067. The next prime is 420352005173. The reversal of 420352005169 is 961500253024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 369451230625 + 50900774544 = 607825^2 + 225612^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420352005169 is a prime.

It is a super-2 number, since 2×420352005169² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (420352005869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210176002584 + 210176002585.

It is an arithmetic number, because the mean of its divisors is an integer number (210176002585).

Almost surely, 2^420352005169 is an apocalyptic number.

It is an amenable number.

420352005169 is a deficient number, since it is larger than the sum of its proper divisors (1).

420352005169 is an equidigital number, since it uses as much as digits as its factorization.

420352005169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 420352005169 in words is "four hundred twenty billion, three hundred fifty-two million, five thousand, one hundred sixty-nine".