327638041447 has 2 divisors, whose sum is σ = 327638041448. Its totient is φ = 327638041446.

The previous prime is 327638041433. The next prime is 327638041453. The reversal of 327638041447 is 744140836723.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-327638041447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 327638041447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (327638041427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163819020723 + 163819020724.

It is an arithmetic number, because the mean of its divisors is an integer number (163819020724).

Almost surely, 2^327638041447 is an apocalyptic number.

327638041447 is a deficient number, since it is larger than the sum of its proper divisors (1).

327638041447 is an equidigital number, since it uses as much as digits as its factorization.

327638041447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2709504, while the sum is 49.

The spelling of 327638041447 in words is "three hundred twenty-seven billion, six hundred thirty-eight million, forty-one thousand, four hundred forty-seven".