1328939770937 has 2 divisors, whose sum is σ = 1328939770938. Its totient is φ = 1328939770936.

The previous prime is 1328939770933. The next prime is 1328939770979. The reversal of 1328939770937 is 7390779398231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1071947551801 + 256992219136 = 1035349^2 + 506944^2 .

It is an emirp because it is prime and its reverse (7390779398231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1328939770937 - 2² = 1328939770933 is a prime.

It is not a weakly prime, because it can be changed into another prime (1328939770931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664469885468 + 664469885469.

It is an arithmetic number, because the mean of its divisors is an integer number (664469885469).

Almost surely, 2^{1328939770937} is an apocalyptic number.

It is an amenable number.

1328939770937 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328939770937 is an equidigital number, since it uses as much as digits as its factorization.

1328939770937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108020304, while the sum is 68.

The spelling of 1328939770937 in words is "one trillion, three hundred twenty-eight billion, nine hundred thirty-nine million, seven hundred seventy thousand, nine hundred thirty-seven".