325129778688 has 320 divisors, whose sum is σ = 1032828394752. Its totient is φ = 89583943680.

The previous prime is 325129778663. The next prime is 325129778689. The reversal of 325129778688 is 886877921523.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325129778689) 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 31 ways as a sum of consecutive naturals, for example, 14705370 + ... + 14727462.

Almost surely, 2^325129778688 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 325129778688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (516414197376).

325129778688 is an abundant number, since it is smaller than the sum of its proper divisors (707698616064).

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

325129778688 is a wasteful number, since it uses less digits than its factorization.

325129778688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22205 (or 22189 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 66.

The spelling of 325129778688 in words is "three hundred twenty-five billion, one hundred twenty-nine million, seven hundred seventy-eight thousand, six hundred eighty-eight".