326787328871 has 2 divisors, whose sum is σ = 326787328872. Its totient is φ = 326787328870.

The previous prime is 326787328837. The next prime is 326787328921. The reversal of 326787328871 is 178823787623.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 326787328871 - 2³⁰ = 325713587047 is a prime.

It is a super-2 number, since 2×326787328871² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (326780328871) 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, 163393664435 + 163393664436.

It is an arithmetic number, because the mean of its divisors is an integer number (163393664436).

Almost surely, 2^326787328871 is an apocalyptic number.

326787328871 is a deficient number, since it is larger than the sum of its proper divisors (1).

326787328871 is an equidigital number, since it uses as much as digits as its factorization.

326787328871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37933056, while the sum is 62.

The spelling of 326787328871 in words is "three hundred twenty-six billion, seven hundred eighty-seven million, three hundred twenty-eight thousand, eight hundred seventy-one".