325215630128 has 80 divisors (see below), whose sum is σ = 702604717920. Its totient is φ = 144921673728.

The previous prime is 325215630119. The next prime is 325215630133. The reversal of 325215630128 is 821036512523.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 325215630091 and 325215630100.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12353876 + ... + 12380172.

It is an arithmetic number, because the mean of its divisors is an integer number (8782558974).

Almost surely, 2^325215630128 is an apocalyptic number.

325215630128 is a gapful number since it is divisible by the number (38) 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 325215630128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351302358960).

325215630128 is an abundant number, since it is smaller than the sum of its proper divisors (377389087792).

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

325215630128 is a wasteful number, since it uses less digits than its factorization.

325215630128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28734 (or 28728 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 325215630128 in words is "three hundred twenty-five billion, two hundred fifteen million, six hundred thirty thousand, one hundred twenty-eight".