327129989773 has 2 divisors, whose sum is σ = 327129989774. Its totient is φ = 327129989772.

The previous prime is 327129989699. The next prime is 327129989831. The reversal of 327129989773 is 377989921723.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199078377124 + 128051612649 = 446182^2 + 357843^2 .

It is a cyclic number.

It is not a de Polignac number, because 327129989773 - 2⁹ = 327129989261 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 327129989699 and 327129989708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (327129989573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163564994886 + 163564994887.

It is an arithmetic number, because the mean of its divisors is an integer number (163564994887).

Almost surely, 2^327129989773 is an apocalyptic number.

It is an amenable number.

327129989773 is a deficient number, since it is larger than the sum of its proper divisors (1).

327129989773 is an equidigital number, since it uses as much as digits as its factorization.

327129989773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72013536, while the sum is 67.

The spelling of 327129989773 in words is "three hundred twenty-seven billion, one hundred twenty-nine million, nine hundred eighty-nine thousand, seven hundred seventy-three".