323115819593857 has 2 divisors, whose sum is σ = 323115819593858. Its totient is φ = 323115819593856.

The previous prime is 323115819593783. The next prime is 323115819593923. The reversal of 323115819593857 is 758395918511323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 303367181318721 + 19748638275136 = 17417439^2 + 4443944^2 .

It is an emirp because it is prime and its reverse (758395918511323) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 323115819593857 - 2¹⁹ = 323115819069569 is a prime.

It is not a weakly prime, because it can be changed into another prime (323115819591857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161557909796928 + 161557909796929.

It is an arithmetic number, because the mean of its divisors is an integer number (161557909796929).

Almost surely, 2^{323115819593857} is an apocalyptic number.

It is an amenable number.

323115819593857 is a deficient number, since it is larger than the sum of its proper divisors (1).

323115819593857 is an equidigital number, since it uses as much as digits as its factorization.

323115819593857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944000, while the sum is 70.

The spelling of 323115819593857 in words is "three hundred twenty-three trillion, one hundred fifteen billion, eight hundred nineteen million, five hundred ninety-three thousand, eight hundred fifty-seven".