326572172033 has 2 divisors, whose sum is σ = 326572172034. Its totient is φ = 326572172032.

The previous prime is 326572172027. The next prime is 326572172149. The reversal of 326572172033 is 330271275623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194350485904 + 132221686129 = 440852^2 + 363623^2 .

It is a cyclic number.

It is not a de Polignac number, because 326572172033 - 2²⁰ = 326571123457 is a prime.

It is not a weakly prime, because it can be changed into another prime (326572172233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163286086016 + 163286086017.

It is an arithmetic number, because the mean of its divisors is an integer number (163286086017).

Almost surely, 2^326572172033 is an apocalyptic number.

It is an amenable number.

326572172033 is a deficient number, since it is larger than the sum of its proper divisors (1).

326572172033 is an equidigital number, since it uses as much as digits as its factorization.

326572172033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 41.

The spelling of 326572172033 in words is "three hundred twenty-six billion, five hundred seventy-two million, one hundred seventy-two thousand, thirty-three".