325171829861 has 4 divisors (see below), whose sum is σ = 325175767500. Its totient is φ = 325167892224.

The previous prime is 325171829839. The next prime is 325171829947. The reversal of 325171829861 is 168928171523.

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 269667297025 + 55504532836 = 519295^2 + 235594^2 .

It is a cyclic number.

It is not a de Polignac number, because 325171829861 - 2⁶ = 325171829797 is a prime.

It is a super-2 number, since 2×325171829861² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325171829761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1842236 + ... + 2011013.

It is an arithmetic number, because the mean of its divisors is an integer number (81293941875).

Almost surely, 2^325171829861 is an apocalyptic number.

It is an amenable number.

325171829861 is a deficient number, since it is larger than the sum of its proper divisors (3937639).

325171829861 is an equidigital number, since it uses as much as digits as its factorization.

325171829861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3937638.

The product of its digits is 1451520, while the sum is 53.

The spelling of 325171829861 in words is "three hundred twenty-five billion, one hundred seventy-one million, eight hundred twenty-nine thousand, eight hundred sixty-one".