321714317568 has 144 divisors (see below), whose sum is σ = 979803991040. Its totient is φ = 91800373248.

The previous prime is 321714317563. The next prime is 321714317569. The reversal of 321714317568 is 865713417123.

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

It is not an unprimeable number, because it can be changed into a prime (321714317563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4192893 + ... + 4268931.

Almost surely, 2^321714317568 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 321714317568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (489901995520).

321714317568 is an abundant number, since it is smaller than the sum of its proper divisors (658089673472).

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

321714317568 is an equidigital number, since it uses as much as digits as its factorization.

321714317568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76852 (or 76838 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The spelling of 321714317568 in words is "three hundred twenty-one billion, seven hundred fourteen million, three hundred seventeen thousand, five hundred sixty-eight".