326772055717 has 2 divisors, whose sum is σ = 326772055718. Its totient is φ = 326772055716.

The previous prime is 326772055691. The next prime is 326772055747. The reversal of 326772055717 is 717550277623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 314077301476 + 12694754241 = 560426^2 + 112671^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-326772055717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (326772055747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163386027858 + 163386027859.

It is an arithmetic number, because the mean of its divisors is an integer number (163386027859).

Almost surely, 2^326772055717 is an apocalyptic number.

It is an amenable number.

326772055717 is a deficient number, since it is larger than the sum of its proper divisors (1).

326772055717 is an equidigital number, since it uses as much as digits as its factorization.

326772055717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4321800, while the sum is 52.

The spelling of 326772055717 in words is "three hundred twenty-six billion, seven hundred seventy-two million, fifty-five thousand, seven hundred seventeen".