321489206480 has 160 divisors (see below), whose sum is σ = 812201765760. Its totient is φ = 117638277120.

The previous prime is 321489206477. The next prime is 321489206483. The reversal of 321489206480 is 84602984123.

It is an interprime number because it is at equal distance from previous prime (321489206477) and next prime (321489206483).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321489206483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158446106 + ... + 158448134.

It is an arithmetic number, because the mean of its divisors is an integer number (5076261036).

Almost surely, 2^321489206480 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 321489206480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406100882880).

321489206480 is an abundant number, since it is smaller than the sum of its proper divisors (490712559280).

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

321489206480 is a wasteful number, since it uses less digits than its factorization.

321489206480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3349 (or 3343 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 321489206480 in words is "three hundred twenty-one billion, four hundred eighty-nine million, two hundred six thousand, four hundred eighty".