323227552128 has 128 divisors (see below), whose sum is σ = 924973862400. Its totient is φ = 99416279040.

The previous prime is 323227552091. The next prime is 323227552139. The reversal of 323227552128 is 821255722323.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-3 number, since 3×323227552128³ (a number of 36 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 323227552128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14660473 + ... + 14682503.

It is an arithmetic number, because the mean of its divisors is an integer number (7226358300).

Almost surely, 2^323227552128 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 323227552128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (462486931200).

323227552128 is an abundant number, since it is smaller than the sum of its proper divisors (601746310272).

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

323227552128 is a wasteful number, since it uses less digits than its factorization.

323227552128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25000 (or 24988 counting only the distinct ones).

The product of its digits is 403200, while the sum is 42.

The spelling of 323227552128 in words is "three hundred twenty-three billion, two hundred twenty-seven million, five hundred fifty-two thousand, one hundred twenty-eight".