325542640531446 has 128 divisors (see below), whose sum is σ = 798106964054400. Its totient is φ = 97720355819520.

The previous prime is 325542640531429. The next prime is 325542640531447. The reversal of 325542640531446 is 644135046245523.

325542640531446 is a `hidden beast` number, since 3 + 2 + 5 + 5 + 4 + 2 + 64 + 0 + 531 + 4 + 46 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 325542640531392 and 325542640531401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325542640531447) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 864106350 + ... + 864483006.

It is an arithmetic number, because the mean of its divisors is an integer number (6235210656675).

Almost surely, 2^{325542640531446} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 325542640531446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399053482027200).

325542640531446 is an abundant number, since it is smaller than the sum of its proper divisors (472564323522954).

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

325542640531446 is a wasteful number, since it uses less digits than its factorization.

325542640531446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406751 (or 406745 counting only the distinct ones).

The product of its (nonzero) digits is 41472000, while the sum is 54.

Adding to 325542640531446 its reverse (644135046245523), we get a palindrome (969677686776969).

The spelling of 325542640531446 in words is "three hundred twenty-five trillion, five hundred forty-two billion, six hundred forty million, five hundred thirty-one thousand, four hundred forty-six".