329284904482981 has 2 divisors, whose sum is σ = 329284904482982. Its totient is φ = 329284904482980.

The previous prime is 329284904482979. The next prime is 329284904482993. The reversal of 329284904482981 is 189284409482923.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 271495944853956 + 57788959629025 = 16477134^2 + 7601905^2 .

It is a cyclic number.

It is not a de Polignac number, because 329284904482981 - 2¹ = 329284904482979 is a prime.

It is a super-2 number, since 2×329284904482981² (a number of 30 digits) contains 22 as substring.

Together with 329284904482979, 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 (329284904882981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164642452241490 + 164642452241491.

It is an arithmetic number, because the mean of its divisors is an integer number (164642452241491).

Almost surely, 2^{329284904482981} is an apocalyptic number.

It is an amenable number.

329284904482981 is a deficient number, since it is larger than the sum of its proper divisors (1).

329284904482981 is an equidigital number, since it uses as much as digits as its factorization.

329284904482981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 573308928, while the sum is 73.

The spelling of 329284904482981 in words is "three hundred twenty-nine trillion, two hundred eighty-four billion, nine hundred four million, four hundred eighty-two thousand, nine hundred eighty-one".