1329496774326 has 96 divisors (see below), whose sum is σ = 3336348008448. Its totient is φ = 374782282560.

The previous prime is 1329496774301. The next prime is 1329496774327. The reversal of 1329496774326 is 6234776949231.

It is a happy number.

1329496774326 is a `hidden beast` number, since 1 + 32 + 9 + 496 + 77 + 43 + 2 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1329496774327) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2666851 + ... + 3125873.

It is an arithmetic number, because the mean of its divisors is an integer number (34753625088).

Almost surely, 2^{1329496774326} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1329496774326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1668174004224).

1329496774326 is an abundant number, since it is smaller than the sum of its proper divisors (2006851234122).

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

1329496774326 is a wasteful number, since it uses less digits than its factorization.

1329496774326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459346 (or 459343 counting only the distinct ones).

The product of its digits is 82301184, while the sum is 63.

The spelling of 1329496774326 in words is "one trillion, three hundred twenty-nine billion, four hundred ninety-six million, seven hundred seventy-four thousand, three hundred twenty-six".