321901908496 has 135 divisors (see below), whose sum is σ = 759288344493. Its totient is φ = 131810004480.

The previous prime is 321901908469. The next prime is 321901908529. The reversal of 321901908496 is 694809109123.

The square root of 321901908496 is 567364.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 56470868496 + 265431040000 = 237636^2 + 515200^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 365381976 + ... + 365382856.

Almost surely, 2^321901908496 is an apocalyptic number.

321901908496 is the 567364-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321901908496

321901908496 is an abundant number, since it is smaller than the sum of its proper divisors (437386435997).

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

321901908496 is an frugal number, since it uses more digits than its factorization.

321901908496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830 (or 913 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 52.

The spelling of 321901908496 in words is "three hundred twenty-one billion, nine hundred one million, nine hundred eight thousand, four hundred ninety-six".