325318257840 has 640 divisors, whose sum is σ = 1124568023040. Its totient is φ = 77511684096.

The previous prime is 325318257799. The next prime is 325318257841. The reversal of 325318257840 is 48752813523.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 325318257840.

It is not an unprimeable number, because it can be changed into a prime (325318257841) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1149534339 + ... + 1149534621.

It is an arithmetic number, because the mean of its divisors is an integer number (1757137536).

Almost surely, 2^325318257840 is an apocalyptic number.

325318257840 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 325318257840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562284011520).

325318257840 is an abundant number, since it is smaller than the sum of its proper divisors (799249765200).

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

325318257840 is a wasteful number, since it uses less digits than its factorization.

325318257840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 325318257840 in words is "three hundred twenty-five billion, three hundred eighteen million, two hundred fifty-seven thousand, eight hundred forty".