441561632466469 has 2 divisors, whose sum is σ = 441561632466470. Its totient is φ = 441561632466468.

The previous prime is 441561632466467. The next prime is 441561632466611. The reversal of 441561632466469 is 964664236165144.

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., 325331132415844 + 116230500050625 = 18036938^2 + 10781025^2 .

It is a cyclic number.

It is not a de Polignac number, because 441561632466469 - 2¹ = 441561632466467 is a prime.

It is a super-2 number, since 2×441561632466469² (a number of 30 digits) contains 22 as substring.

Together with 441561632466467, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (441561632466467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220780816233234 + 220780816233235.

It is an arithmetic number, because the mean of its divisors is an integer number (220780816233235).

Almost surely, 2^{441561632466469} is an apocalyptic number.

It is an amenable number.

441561632466469 is a deficient number, since it is larger than the sum of its proper divisors (1).

441561632466469 is an equidigital number, since it uses as much as digits as its factorization.

441561632466469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 537477120, while the sum is 67.

The spelling of 441561632466469 in words is "four hundred forty-one trillion, five hundred sixty-one billion, six hundred thirty-two million, four hundred sixty-six thousand, four hundred sixty-nine".