326252781317 has 4 divisors (see below), whose sum is σ = 326274135660. Its totient is φ = 326231426976.

The previous prime is 326252781313. The next prime is 326252781353. The reversal of 326252781317 is 713187252623.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 189352041316 + 136900740001 = 435146^2 + 370001^2 .

It is a cyclic number.

It is not a de Polignac number, because 326252781317 - 2² = 326252781313 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326252781313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10654238 + ... + 10684815.

It is an arithmetic number, because the mean of its divisors is an integer number (81568533915).

Almost surely, 2^326252781317 is an apocalyptic number.

It is an amenable number.

326252781317 is a deficient number, since it is larger than the sum of its proper divisors (21354343).

326252781317 is a wasteful number, since it uses less digits than its factorization.

326252781317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21354342.

The product of its digits is 846720, while the sum is 47.

The spelling of 326252781317 in words is "three hundred twenty-six billion, two hundred fifty-two million, seven hundred eighty-one thousand, three hundred seventeen".