326005337381 has 2 divisors, whose sum is σ = 326005337382. Its totient is φ = 326005337380.

The previous prime is 326005337377. The next prime is 326005337393. The reversal of 326005337381 is 183733500623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 280863961156 + 45141376225 = 529966^2 + 212465^2 .

It is an emirp because it is prime and its reverse (183733500623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 326005337381 - 2² = 326005337377 is a prime.

It is a super-2 number, since 2×326005337381² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (326005337341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163002668690 + 163002668691.

It is an arithmetic number, because the mean of its divisors is an integer number (163002668691).

Almost surely, 2^326005337381 is an apocalyptic number.

It is an amenable number.

326005337381 is a deficient number, since it is larger than the sum of its proper divisors (1).

326005337381 is an equidigital number, since it uses as much as digits as its factorization.

326005337381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 41.

The spelling of 326005337381 in words is "three hundred twenty-six billion, five million, three hundred thirty-seven thousand, three hundred eighty-one".