325440051817 has 4 divisors (see below), whose sum is σ = 325447330896. Its totient is φ = 325432772740.

The previous prime is 325440051809. The next prime is 325440051829. The reversal of 325440051817 is 718150044523.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 718150044523 = 49529 ⋅14499587.

It is a cyclic number.

It is not a de Polignac number, because 325440051817 - 2³ = 325440051809 is a prime.

It is a super-2 number, since 2×325440051817² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 325440051817.

It is not an unprimeable number, because it can be changed into a prime (325440051017) 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, 3572059 + ... + 3662032.

It is an arithmetic number, because the mean of its divisors is an integer number (81361832724).

Almost surely, 2^325440051817 is an apocalyptic number.

It is an amenable number.

325440051817 is a deficient number, since it is larger than the sum of its proper divisors (7279079).

325440051817 is an equidigital number, since it uses as much as digits as its factorization.

325440051817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7279078.

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 325440051817 in words is "three hundred twenty-five billion, four hundred forty million, fifty-one thousand, eight hundred seventeen".