326439874417 has 2 divisors, whose sum is σ = 326439874418. Its totient is φ = 326439874416.

The previous prime is 326439874381. The next prime is 326439874427. The reversal of 326439874417 is 714478934623.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187735024656 + 138704849761 = 433284^2 + 372431^2 .

It is an emirp because it is prime and its reverse (714478934623) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-326439874417 is a prime.

It is not a weakly prime, because it can be changed into another prime (326439874427) 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, 163219937208 + 163219937209.

It is an arithmetic number, because the mean of its divisors is an integer number (163219937209).

Almost surely, 2^326439874417 is an apocalyptic number.

It is an amenable number.

326439874417 is a deficient number, since it is larger than the sum of its proper divisors (1).

326439874417 is an equidigital number, since it uses as much as digits as its factorization.

326439874417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24385536, while the sum is 58.

The spelling of 326439874417 in words is "three hundred twenty-six billion, four hundred thirty-nine million, eight hundred seventy-four thousand, four hundred seventeen".