421341285637 has 2 divisors, whose sum is σ = 421341285638. Its totient is φ = 421341285636.

The previous prime is 421341285611. The next prime is 421341285647. The reversal of 421341285637 is 736582143124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 278178185476 + 143163100161 = 527426^2 + 378369^2 .

It is a cyclic number.

It is not a de Polignac number, because 421341285637 - 2⁷ = 421341285509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421341285647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210670642818 + 210670642819.

It is an arithmetic number, because the mean of its divisors is an integer number (210670642819).

Almost surely, 2^421341285637 is an apocalyptic number.

It is an amenable number.

421341285637 is a deficient number, since it is larger than the sum of its proper divisors (1).

421341285637 is an equidigital number, since it uses as much as digits as its factorization.

421341285637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 46.

The spelling of 421341285637 in words is "four hundred twenty-one billion, three hundred forty-one million, two hundred eighty-five thousand, six hundred thirty-seven".