327638045543 has 2 divisors, whose sum is σ = 327638045544. Its totient is φ = 327638045542.

The previous prime is 327638045503. The next prime is 327638045549. The reversal of 327638045543 is 345540836723.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 327638045543 - 2¹⁰ = 327638044519 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 327638045491 and 327638045500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (327638045549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163819022771 + 163819022772.

It is an arithmetic number, because the mean of its divisors is an integer number (163819022772).

Almost surely, 2^327638045543 is an apocalyptic number.

327638045543 is a deficient number, since it is larger than the sum of its proper divisors (1).

327638045543 is an equidigital number, since it uses as much as digits as its factorization.

327638045543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7257600, while the sum is 50.

The spelling of 327638045543 in words is "three hundred twenty-seven billion, six hundred thirty-eight million, forty-five thousand, five hundred forty-three".