327901987745671 has 2 divisors, whose sum is σ = 327901987745672. Its totient is φ = 327901987745670.

The previous prime is 327901987745669. The next prime is 327901987745681. The reversal of 327901987745671 is 176547789109723.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 327901987745671 - 2¹ = 327901987745669 is a prime.

Together with 327901987745669, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (327901987745611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163950993872835 + 163950993872836.

It is an arithmetic number, because the mean of its divisors is an integer number (163950993872836).

It is a 2-persistent number, because it is pandigital, and so is 2⋅327901987745671 = 655803975491342, but 3⋅327901987745671 = 983705963237013 is not.

Almost surely, 2^{327901987745671} is an apocalyptic number.

327901987745671 is a deficient number, since it is larger than the sum of its proper divisors (1).

327901987745671 is an equidigital number, since it uses as much as digits as its factorization.

327901987745671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120210560, while the sum is 76.

The spelling of 327901987745671 in words is "three hundred twenty-seven trillion, nine hundred one billion, nine hundred eighty-seven million, seven hundred forty-five thousand, six hundred seventy-one".