325638807228 has 288 divisors, whose sum is σ = 1010898330624. Its totient is φ = 89716128768.

The previous prime is 325638807199. The next prime is 325638807239. The reversal of 325638807228 is 822708836523.

325638807228 is a `hidden beast` number, since 3 + 2 + 563 + 8 + 8 + 0 + 72 + 2 + 8 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 28441801 + ... + 28453247.

It is an arithmetic number, because the mean of its divisors is an integer number (3510063648).

Almost surely, 2^325638807228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 325638807228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (505449165312).

325638807228 is an abundant number, since it is smaller than the sum of its proper divisors (685259523396).

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

325638807228 is a wasteful number, since it uses less digits than its factorization.

325638807228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11623 (or 11609 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 325638807228 in words is "three hundred twenty-five billion, six hundred thirty-eight million, eight hundred seven thousand, two hundred twenty-eight".