1328443297446 has 16 divisors (see below), whose sum is σ = 2657885832000. Its totient is φ = 442647892968.

The previous prime is 1328443297427. The next prime is 1328443297463. The reversal of 1328443297446 is 6447923448231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41617596 + ... + 41649503.

It is an arithmetic number, because the mean of its divisors is an integer number (166117864500).

Almost surely, 2^{1328443297446} is an apocalyptic number.

1328443297446 is an abundant number, since it is smaller than the sum of its proper divisors (1329442534554).

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

1328443297446 is a wasteful number, since it uses less digits than its factorization.

1328443297446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83269763.

The product of its digits is 27869184, while the sum is 57.

The spelling of 1328443297446 in words is "one trillion, three hundred twenty-eight billion, four hundred forty-three million, two hundred ninety-seven thousand, four hundred forty-six".