329376884561 has 2 divisors, whose sum is σ = 329376884562. Its totient is φ = 329376884560.

The previous prime is 329376884537. The next prime is 329376884597. The reversal of 329376884561 is 165488673923.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204683856400 + 124693028161 = 452420^2 + 353119^2 .

It is a cyclic number.

It is not a de Polignac number, because 329376884561 - 2⁶ = 329376884497 is a prime.

It is a super-2 number, since 2×329376884561² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 329376884494 and 329376884503.

It is not a weakly prime, because it can be changed into another prime (329373884561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164688442280 + 164688442281.

It is an arithmetic number, because the mean of its divisors is an integer number (164688442281).

Almost surely, 2^329376884561 is an apocalyptic number.

It is an amenable number.

329376884561 is a deficient number, since it is larger than the sum of its proper divisors (1).

329376884561 is an equidigital number, since it uses as much as digits as its factorization.

329376884561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52254720, while the sum is 62.

The spelling of 329376884561 in words is "three hundred twenty-nine billion, three hundred seventy-six million, eight hundred eighty-four thousand, five hundred sixty-one".