326553985913 has 2 divisors, whose sum is σ = 326553985914. Its totient is φ = 326553985912.

The previous prime is 326553985867. The next prime is 326553985937. The reversal of 326553985913 is 319589355623.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 281315673664 + 45238312249 = 530392^2 + 212693^2 .

It is an emirp because it is prime and its reverse (319589355623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 326553985913 - 2²⁸ = 326285550457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (326553985613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163276992956 + 163276992957.

It is an arithmetic number, because the mean of its divisors is an integer number (163276992957).

Almost surely, 2^326553985913 is an apocalyptic number.

It is an amenable number.

326553985913 is a deficient number, since it is larger than the sum of its proper divisors (1).

326553985913 is an equidigital number, since it uses as much as digits as its factorization.

326553985913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26244000, while the sum is 59.

The spelling of 326553985913 in words is "three hundred twenty-six billion, five hundred fifty-three million, nine hundred eighty-five thousand, nine hundred thirteen".