326956383601 has 3 divisors (see below), whose sum is σ = 326956955403. Its totient is φ = 326955811800.

The previous prime is 326956383587. The next prime is 326956383619. The reversal of 326956383601 is 106383659623.

It is a happy number.

The square root of 326956383601 is 571801.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 961062001 + 325995321600 = 31001^2 + 570960^2 .

It is not a de Polignac number, because 326956383601 - 2¹¹ = 326956381553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326956383001) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 285901 + ... + 857701.

It is an arithmetic number, because the mean of its divisors is an integer number (108985651801).

Almost surely, 2^326956383601 is an apocalyptic number.

326956383601 is the 571801-st square number.

326956383601 is the 285901-st centered octagonal number.

It is an amenable number.

326956383601 is a deficient number, since it is larger than the sum of its proper divisors (571802).

326956383601 is an frugal number, since it uses more digits than its factorization.

326956383601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143602 (or 571801 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 52.

The spelling of 326956383601 in words is "three hundred twenty-six billion, nine hundred fifty-six million, three hundred eighty-three thousand, six hundred one".