326522502272 has 72 divisors (see below), whose sum is σ = 691241910705. Its totient is φ = 153605928960.

The previous prime is 326522502253. The next prime is 326522502287. The reversal of 326522502272 is 272205225623.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 298841528896 + 27680973376 = 546664^2 + 166376^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=404056.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 109901747 + ... + 109904717.

Almost surely, 2^326522502272 is an apocalyptic number.

326522502272 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 326522502272

326522502272 is an abundant number, since it is smaller than the sum of its proper divisors (364719408433).

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

326522502272 is an frugal number, since it uses more digits than its factorization.

326522502272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5990 (or 2990 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 38.

Adding to 326522502272 its reverse (272205225623), we get a palindrome (598727727895).

The spelling of 326522502272 in words is "three hundred twenty-six billion, five hundred twenty-two million, five hundred two thousand, two hundred seventy-two".