327699994649 has 2 divisors, whose sum is σ = 327699994650. Its totient is φ = 327699994648.

The previous prime is 327699994631. The next prime is 327699994733. The reversal of 327699994649 is 946499996723.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 263546703424 + 64153291225 = 513368^2 + 253285^2 .

It is a cyclic number.

It is not a de Polignac number, because 327699994649 - 2⁸ = 327699994393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 327699994649.

It is not a weakly prime, because it can be changed into another prime (327699994049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163849997324 + 163849997325.

It is an arithmetic number, because the mean of its divisors is an integer number (163849997325).

Almost surely, 2^327699994649 is an apocalyptic number.

It is an amenable number.

327699994649 is a deficient number, since it is larger than the sum of its proper divisors (1).

327699994649 is an equidigital number, since it uses as much as digits as its factorization.

327699994649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1428513408, while the sum is 77.

The spelling of 327699994649 in words is "three hundred twenty-seven billion, six hundred ninety-nine million, nine hundred ninety-four thousand, six hundred forty-nine".