327720443117 has 2 divisors, whose sum is σ = 327720443118. Its totient is φ = 327720443116.

The previous prime is 327720443051. The next prime is 327720443143. The reversal of 327720443117 is 711344027723.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 327694422916 + 26020201 = 572446^2 + 5101^2 .

It is a cyclic number.

It is not a de Polignac number, because 327720443117 - 2³⁴ = 310540573933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (327720443917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163860221558 + 163860221559.

It is an arithmetic number, because the mean of its divisors is an integer number (163860221559).

Almost surely, 2^327720443117 is an apocalyptic number.

It is an amenable number.

327720443117 is a deficient number, since it is larger than the sum of its proper divisors (1).

327720443117 is an equidigital number, since it uses as much as digits as its factorization.

327720443117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 197568, while the sum is 41.

The spelling of 327720443117 in words is "three hundred twenty-seven billion, seven hundred twenty million, four hundred forty-three thousand, one hundred seventeen".