327649922461 has 2 divisors, whose sum is σ = 327649922462. Its totient is φ = 327649922460.

The previous prime is 327649922407. The next prime is 327649922489. The reversal of 327649922461 is 164229946723.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 319981417561 + 7668504900 = 565669^2 + 87570^2 .

It is a cyclic number.

It is not a de Polignac number, because 327649922461 - 2¹³ = 327649914269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (327649962461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163824961230 + 163824961231.

It is an arithmetic number, because the mean of its divisors is an integer number (163824961231).

Almost surely, 2^327649922461 is an apocalyptic number.

It is an amenable number.

327649922461 is a deficient number, since it is larger than the sum of its proper divisors (1).

327649922461 is an equidigital number, since it uses as much as digits as its factorization.

327649922461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 55.

The spelling of 327649922461 in words is "three hundred twenty-seven billion, six hundred forty-nine million, nine hundred twenty-two thousand, four hundred sixty-one".