331065824849 has 2 divisors, whose sum is σ = 331065824850. Its totient is φ = 331065824848.

The previous prime is 331065824801. The next prime is 331065824851. The reversal of 331065824849 is 948428560133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204966263824 + 126099561025 = 452732^2 + 355105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331065824849 is a prime.

Together with 331065824851, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 331065824849.

It is not a weakly prime, because it can be changed into another prime (331065824899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165532912424 + 165532912425.

It is an arithmetic number, because the mean of its divisors is an integer number (165532912425).

Almost surely, 2^331065824849 is an apocalyptic number.

It is an amenable number.

331065824849 is a deficient number, since it is larger than the sum of its proper divisors (1).

331065824849 is an equidigital number, since it uses as much as digits as its factorization.

331065824849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4976640, while the sum is 53.

The spelling of 331065824849 in words is "three hundred thirty-one billion, sixty-five million, eight hundred twenty-four thousand, eight hundred forty-nine".