326534404435693 has 2 divisors, whose sum is σ = 326534404435694. Its totient is φ = 326534404435692.

The previous prime is 326534404435661. The next prime is 326534404435697. The reversal of 326534404435693 is 396534404435623.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 319662860457924 + 6871543977769 = 17879118^2 + 2621363^2 .

It is a cyclic number.

It is not a de Polignac number, because 326534404435693 - 2⁵ = 326534404435661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (326534404435697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163267202217846 + 163267202217847.

It is an arithmetic number, because the mean of its divisors is an integer number (163267202217847).

Almost surely, 2^{326534404435693} is an apocalyptic number.

It is an amenable number.

326534404435693 is a deficient number, since it is larger than the sum of its proper divisors (1).

326534404435693 is an equidigital number, since it uses as much as digits as its factorization.

326534404435693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 335923200, while the sum is 61.

The spelling of 326534404435693 in words is "three hundred twenty-six trillion, five hundred thirty-four billion, four hundred four million, four hundred thirty-five thousand, six hundred ninety-three".