325622375820 has 576 divisors, whose sum is σ = 1220055782400. Its totient is φ = 68647772160.

The previous prime is 325622375807. The next prime is 325622375873. The reversal of 325622375820 is 28573226523.

325622375820 is a `hidden beast` number, since 3 + 2 + 5 + 62 + 2 + 3 + 7 + 582 + 0 = 666.

It is a super-2 number, since 2×325622375820² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 142753080 + ... + 142755360.

It is an arithmetic number, because the mean of its divisors is an integer number (2118152400).

Almost surely, 2^325622375820 is an apocalyptic number.

325622375820 is a gapful number since it is divisible by the number (30) 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 325622375820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (610027891200).

325622375820 is an abundant number, since it is smaller than the sum of its proper divisors (894433406580).

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

325622375820 is a wasteful number, since it uses less digits than its factorization.

325622375820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2478 (or 2473 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 325622375820 in words is "three hundred twenty-five billion, six hundred twenty-two million, three hundred seventy-five thousand, eight hundred twenty".