321544325344 has 192 divisors, whose sum is σ = 717041445120. Its totient is φ = 140672286720.

The previous prime is 321544325341. The next prime is 321544325363. The reversal of 321544325344 is 443523445123.

It is a junction number, because it is equal to n+sod(n) for n = 321544325297 and 321544325306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321544325341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 571126407 + ... + 571126969.

It is an arithmetic number, because the mean of its divisors is an integer number (3734590860).

Almost surely, 2^321544325344 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 321544325344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358520722560).

321544325344 is an abundant number, since it is smaller than the sum of its proper divisors (395497119776).

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

321544325344 is a wasteful number, since it uses less digits than its factorization.

321544325344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113 (or 1105 counting only the distinct ones).

The product of its digits is 691200, while the sum is 40.

The spelling of 321544325344 in words is "three hundred twenty-one billion, five hundred forty-four million, three hundred twenty-five thousand, three hundred forty-four".