1328285065441 has 2 divisors, whose sum is σ = 1328285065442. Its totient is φ = 1328285065440.

The previous prime is 1328285065423. The next prime is 1328285065469. The reversal of 1328285065441 is 1445605828231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 787618975441 + 540666090000 = 887479^2 + 735300^2 .

It is a cyclic number.

It is not a de Polignac number, because 1328285065441 - 2¹⁹ = 1328284541153 is a prime.

It is not a weakly prime, because it can be changed into another prime (1328285005441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664142532720 + 664142532721.

It is an arithmetic number, because the mean of its divisors is an integer number (664142532721).

Almost surely, 2^{1328285065441} is an apocalyptic number.

It is an amenable number.

1328285065441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328285065441 is an equidigital number, since it uses as much as digits as its factorization.

1328285065441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1843200, while the sum is 49.

The spelling of 1328285065441 in words is "one trillion, three hundred twenty-eight billion, two hundred eighty-five million, sixty-five thousand, four hundred forty-one".