1326797843328 has 320 divisors, whose sum is σ = 4101897270240. Its totient is φ = 425392128000.

The previous prime is 1326797843323. The next prime is 1326797843353. The reversal of 1326797843328 is 8233487976231.

1326797843328 is a `hidden beast` number, since 1 + 3 + 267 + 9 + 7 + 8 + 43 + 328 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326797843323) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 30159268 + ... + 30203228.

Almost surely, 2^{1326797843328} is an apocalyptic number.

1326797843328 is a gapful number since it is divisible by the number (18) 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 1326797843328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2050948635120).

1326797843328 is an abundant number, since it is smaller than the sum of its proper divisors (2775099426912).

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

1326797843328 is an equidigital number, since it uses as much as digits as its factorization.

1326797843328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44099 (or 44078 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 63.

The spelling of 1326797843328 in words is "one trillion, three hundred twenty-six billion, seven hundred ninety-seven million, eight hundred forty-three thousand, three hundred twenty-eight".