326423663332305 has 48 divisors (see below), whose sum is σ = 662779326826944. Its totient is φ = 135656587355520.

The previous prime is 326423663332289. The next prime is 326423663332309. The reversal of 326423663332305 is 503233366324623.

It is not a de Polignac number, because 326423663332305 - 2⁴ = 326423663332289 is a prime.

It is a super-2 number, since 2×326423663332305² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (326423663332309) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20186984082 + ... + 20187000251.

It is an arithmetic number, because the mean of its divisors is an integer number (13807902642228).

Almost surely, 2^{326423663332305} is an apocalyptic number.

326423663332305 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

326423663332305 is an abundant number, since it is smaller than the sum of its proper divisors (336355663494639).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

326423663332305 is a wasteful number, since it uses less digits than its factorization.

326423663332305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40373984366 (or 40373984359 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 51.

The spelling of 326423663332305 in words is "three hundred twenty-six trillion, four hundred twenty-three billion, six hundred sixty-three million, three hundred thirty-two thousand, three hundred five".