326375375281 has 2 divisors, whose sum is σ = 326375375282. Its totient is φ = 326375375280.

The previous prime is 326375375273. The next prime is 326375375407. The reversal of 326375375281 is 182573573623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 318079080225 + 8296295056 = 563985^2 + 91084^2 .

It is a cyclic number.

It is not a de Polignac number, because 326375375281 - 2³ = 326375375273 is a prime.

It is a super-2 number, since 2×326375375281² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (326375375201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163187687640 + 163187687641.

It is an arithmetic number, because the mean of its divisors is an integer number (163187687641).

Almost surely, 2^326375375281 is an apocalyptic number.

It is an amenable number.

326375375281 is a deficient number, since it is larger than the sum of its proper divisors (1).

326375375281 is an equidigital number, since it uses as much as digits as its factorization.

326375375281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6350400, while the sum is 52.

The spelling of 326375375281 in words is "three hundred twenty-six billion, three hundred seventy-five million, three hundred seventy-five thousand, two hundred eighty-one".