441326040311561 has 2 divisors, whose sum is σ = 441326040311562. Its totient is φ = 441326040311560.

The previous prime is 441326040311557. The next prime is 441326040311609. The reversal of 441326040311561 is 165113040623144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 352763711820025 + 88562328491536 = 18782005^2 + 9410756^2 .

It is a cyclic number.

It is not a de Polignac number, because 441326040311561 - 2² = 441326040311557 is a prime.

It is not a weakly prime, because it can be changed into another prime (441326040311551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220663020155780 + 220663020155781.

It is an arithmetic number, because the mean of its divisors is an integer number (220663020155781).

Almost surely, 2^{441326040311561} is an apocalyptic number.

It is an amenable number.

441326040311561 is a deficient number, since it is larger than the sum of its proper divisors (1).

441326040311561 is an equidigital number, since it uses as much as digits as its factorization.

441326040311561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 441326040311561 in words is "four hundred forty-one trillion, three hundred twenty-six billion, forty million, three hundred eleven thousand, five hundred sixty-one".