327926980781 has 2 divisors, whose sum is σ = 327926980782. Its totient is φ = 327926980780.

The previous prime is 327926980769. The next prime is 327926980847. The reversal of 327926980781 is 187089629723.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 279761655625 + 48165325156 = 528925^2 + 219466^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-327926980781 is a prime.

It is a super-2 number, since 2×327926980781² (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 (327926980081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163963490390 + 163963490391.

It is an arithmetic number, because the mean of its divisors is an integer number (163963490391).

Almost surely, 2^327926980781 is an apocalyptic number.

It is an amenable number.

327926980781 is a deficient number, since it is larger than the sum of its proper divisors (1).

327926980781 is an equidigital number, since it uses as much as digits as its factorization.

327926980781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18289152, while the sum is 62.

The spelling of 327926980781 in words is "three hundred twenty-seven billion, nine hundred twenty-six million, nine hundred eighty thousand, seven hundred eighty-one".