325643273472 has 144 divisors (see below), whose sum is σ = 946106868672. Its totient is φ = 98613903360.

The previous prime is 325643273447. The next prime is 325643273477. The reversal of 325643273472 is 274372346523.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325643273477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13479388 + ... + 13503524.

It is an arithmetic number, because the mean of its divisors is an integer number (6570186588).

Almost surely, 2^325643273472 is an apocalyptic number.

325643273472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 325643273472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473053434336).

325643273472 is an abundant number, since it is smaller than the sum of its proper divisors (620463595200).

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

325643273472 is a wasteful number, since it uses less digits than its factorization.

325643273472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25764 (or 25750 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 48.

The spelling of 325643273472 in words is "three hundred twenty-five billion, six hundred forty-three million, two hundred seventy-three thousand, four hundred seventy-two".