1323025686539 has 2 divisors, whose sum is σ = 1323025686540. Its totient is φ = 1323025686538.

The previous prime is 1323025686527. The next prime is 1323025686553. The reversal of 1323025686539 is 9356865203231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1323025686539 - 2¹² = 1323025682443 is a prime.

It is not a weakly prime, because it can be changed into another prime (1323025686139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661512843269 + 661512843270.

It is an arithmetic number, because the mean of its divisors is an integer number (661512843270).

Almost surely, 2^{1323025686539} is an apocalyptic number.

1323025686539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323025686539 is an equidigital number, since it uses as much as digits as its factorization.

1323025686539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6998400, while the sum is 53.

The spelling of 1323025686539 in words is "one trillion, three hundred twenty-three billion, twenty-five million, six hundred eighty-six thousand, five hundred thirty-nine".