1328428314529 has 2 divisors, whose sum is σ = 1328428314530. Its totient is φ = 1328428314528.

The previous prime is 1328428314523. The next prime is 1328428314541. The reversal of 1328428314529 is 9254138248231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 920525113600 + 407903200929 = 959440^2 + 638673^2 .

It is a cyclic number.

It is not a de Polignac number, because 1328428314529 - 2²⁹ = 1327891443617 is a prime.

It is not a weakly prime, because it can be changed into another prime (1328428314523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664214157264 + 664214157265.

It is an arithmetic number, because the mean of its divisors is an integer number (664214157265).

Almost surely, 2^{1328428314529} is an apocalyptic number.

It is an amenable number.

1328428314529 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328428314529 is an equidigital number, since it uses as much as digits as its factorization.

1328428314529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3317760, while the sum is 52.

The spelling of 1328428314529 in words is "one trillion, three hundred twenty-eight billion, four hundred twenty-eight million, three hundred fourteen thousand, five hundred twenty-nine".