327129989699 has 2 divisors, whose sum is σ = 327129989700. Its totient is φ = 327129989698.

The previous prime is 327129989687. The next prime is 327129989773. The reversal of 327129989699 is 996989921723.

It is an a-pointer prime, because the next prime (327129989773) can be obtained adding 327129989699 to its sum of digits (74).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 327129989699 - 2¹² = 327129985603 is a prime.

It is a super-2 number, since 2×327129989699² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (327129989899) 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, 163564994849 + 163564994850.

It is an arithmetic number, because the mean of its divisors is an integer number (163564994850).

Almost surely, 2^327129989699 is an apocalyptic number.

327129989699 is a deficient number, since it is larger than the sum of its proper divisors (1).

327129989699 is an equidigital number, since it uses as much as digits as its factorization.

327129989699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 238085568, while the sum is 74.

The spelling of 327129989699 in words is "three hundred twenty-seven billion, one hundred twenty-nine million, nine hundred eighty-nine thousand, six hundred ninety-nine".