1323988518659 has 2 divisors, whose sum is σ = 1323988518660. Its totient is φ = 1323988518658.

The previous prime is 1323988518647. The next prime is 1323988518751. The reversal of 1323988518659 is 9568158893231.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323988518659 is a prime.

It is not a weakly prime, because it can be changed into another prime (1323988515659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661994259329 + 661994259330.

It is an arithmetic number, because the mean of its divisors is an integer number (661994259330).

Almost surely, 2^{1323988518659} is an apocalyptic number.

1323988518659 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323988518659 is an equidigital number, since it uses as much as digits as its factorization.

1323988518659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 111974400, while the sum is 68.

The spelling of 1323988518659 in words is "one trillion, three hundred twenty-three billion, nine hundred eighty-eight million, five hundred eighteen thousand, six hundred fifty-nine".