327742012391 has 2 divisors, whose sum is σ = 327742012392. Its totient is φ = 327742012390.

The previous prime is 327742012363. The next prime is 327742012469. The reversal of 327742012391 is 193210247723.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 327742012391 - 2²² = 327737818087 is a prime.

It is a super-2 number, since 2×327742012391² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (327742011391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163871006195 + 163871006196.

It is an arithmetic number, because the mean of its divisors is an integer number (163871006196).

Almost surely, 2^327742012391 is an apocalyptic number.

327742012391 is a deficient number, since it is larger than the sum of its proper divisors (1).

327742012391 is an equidigital number, since it uses as much as digits as its factorization.

327742012391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 41.

The spelling of 327742012391 in words is "three hundred twenty-seven billion, seven hundred forty-two million, twelve thousand, three hundred ninety-one".