327745013081 has 2 divisors, whose sum is σ = 327745013082. Its totient is φ = 327745013080.

The previous prime is 327745013077. The next prime is 327745013119. The reversal of 327745013081 is 180310547723.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 325014010000 + 2731003081 = 570100^2 + 52259^2 .

It is an emirp because it is prime and its reverse (180310547723) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 327745013081 - 2² = 327745013077 is a prime.

It is a super-2 number, since 2×327745013081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (327745013041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163872506540 + 163872506541.

It is an arithmetic number, because the mean of its divisors is an integer number (163872506541).

Almost surely, 2^327745013081 is an apocalyptic number.

It is an amenable number.

327745013081 is a deficient number, since it is larger than the sum of its proper divisors (1).

327745013081 is an equidigital number, since it uses as much as digits as its factorization.

327745013081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 327745013081 in words is "three hundred twenty-seven billion, seven hundred forty-five million, thirteen thousand, eighty-one".