325689218064 has 560 divisors, whose sum is σ = 1113747763200. Its totient is φ = 92177326080.

The previous prime is 325689217999. The next prime is 325689218069. The reversal of 325689218064 is 460812986523.

325689218064 is a `hidden beast` number, since 3 + 2 + 568 + 9 + 2 + 18 + 0 + 64 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 325689218064.

It is not an unprimeable number, because it can be changed into a prime (325689218069) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 508095184 + ... + 508095824.

Almost surely, 2^325689218064 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 325689218064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (556873881600).

325689218064 is an abundant number, since it is smaller than the sum of its proper divisors (788058545136).

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

325689218064 is an equidigital number, since it uses as much as digits as its factorization.

325689218064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 325689218064 in words is "three hundred twenty-five billion, six hundred eighty-nine million, two hundred eighteen thousand, sixty-four".