323072387609 has 2 divisors, whose sum is σ = 323072387610. Its totient is φ = 323072387608.

The previous prime is 323072387569. The next prime is 323072387621. The reversal of 323072387609 is 906783270323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 271237848025 + 51834539584 = 520805^2 + 227672^2 .

It is a cyclic number.

It is not a de Polignac number, because 323072387609 - 2²⁰ = 323071339033 is a prime.

It is not a weakly prime, because it can be changed into another prime (323072387689) 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, 161536193804 + 161536193805.

It is an arithmetic number, because the mean of its divisors is an integer number (161536193805).

Almost surely, 2^323072387609 is an apocalyptic number.

It is an amenable number.

323072387609 is a deficient number, since it is larger than the sum of its proper divisors (1).

323072387609 is an equidigital number, since it uses as much as digits as its factorization.

323072387609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2286144, while the sum is 50.

The spelling of 323072387609 in words is "three hundred twenty-three billion, seventy-two million, three hundred eighty-seven thousand, six hundred nine".