323212756881028 has 96 divisors (see below), whose sum is σ = 669104090887680. Its totient is φ = 133730945187840.

The previous prime is 323212756881023. The next prime is 323212756881043. The reversal of 323212756881028 is 820188657212323.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (323212756881023) 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, 891669001 + ... + 892031407.

It is an arithmetic number, because the mean of its divisors is an integer number (6969834280080).

Almost surely, 2^{323212756881028} 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 323212756881028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334552045443840).

323212756881028 is an abundant number, since it is smaller than the sum of its proper divisors (345891334006652).

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

323212756881028 is a wasteful number, since it uses less digits than its factorization.

323212756881028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370565 (or 370563 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 58.

The spelling of 323212756881028 in words is "three hundred twenty-three trillion, two hundred twelve billion, seven hundred fifty-six million, eight hundred eighty-one thousand, twenty-eight".