329690670689 has 2 divisors, whose sum is σ = 329690670690. Its totient is φ = 329690670688.

The previous prime is 329690670667. The next prime is 329690670707. The reversal of 329690670689 is 986076096923.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197207046400 + 132483624289 = 444080^2 + 363983^2 .

It is a cyclic number.

It is not a de Polignac number, because 329690670689 - 2³⁶ = 260971193953 is a prime.

It is not a weakly prime, because it can be changed into another prime (329690670619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164845335344 + 164845335345.

It is an arithmetic number, because the mean of its divisors is an integer number (164845335345).

Almost surely, 2^329690670689 is an apocalyptic number.

It is an amenable number.

329690670689 is a deficient number, since it is larger than the sum of its proper divisors (1).

329690670689 is an equidigital number, since it uses as much as digits as its factorization.

329690670689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52907904, while the sum is 65.

The spelling of 329690670689 in words is "three hundred twenty-nine billion, six hundred ninety million, six hundred seventy thousand, six hundred eighty-nine".