326054565336491 has 2 divisors, whose sum is σ = 326054565336492. Its totient is φ = 326054565336490.

The previous prime is 326054565336397. The next prime is 326054565336527. The reversal of 326054565336491 is 194633565450623.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-326054565336491 is a prime.

It is not a weakly prime, because it can be changed into another prime (326054565336191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163027282668245 + 163027282668246.

It is an arithmetic number, because the mean of its divisors is an integer number (163027282668246).

Almost surely, 2^{326054565336491} is an apocalyptic number.

326054565336491 is a deficient number, since it is larger than the sum of its proper divisors (1).

326054565336491 is an equidigital number, since it uses as much as digits as its factorization.

326054565336491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952000, while the sum is 62.

The spelling of 326054565336491 in words is "three hundred twenty-six trillion, fifty-four billion, five hundred sixty-five million, three hundred thirty-six thousand, four hundred ninety-one".