321907976080 has 160 divisors (see below), whose sum is σ = 790711891200. Its totient is φ = 121638967296.

The previous prime is 321907976077. The next prime is 321907976081. The reversal of 321907976080 is 80679709123.

It is not an unprimeable number, because it can be changed into a prime (321907976081) 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, 50381526 + ... + 50387914.

It is an arithmetic number, because the mean of its divisors is an integer number (4941949320).

Almost surely, 2^321907976080 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 321907976080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395355945600).

321907976080 is an abundant number, since it is smaller than the sum of its proper divisors (468803915120).

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

321907976080 is a wasteful number, since it uses less digits than its factorization.

321907976080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6761 (or 6755 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 52.

The spelling of 321907976080 in words is "three hundred twenty-one billion, nine hundred seven million, nine hundred seventy-six thousand, eighty".