1326445289743 has 6 divisors (see below), whose sum is σ = 1515940956456. Its totient is φ = 1136950493652.

The previous prime is 1326445289731. The next prime is 1326445289747. The reversal of 1326445289743 is 3479825446231.

It is a de Polignac number, because none of the positive numbers 2^k-1326445289743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326445289747) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2829496 + ... + 3264802.

It is an arithmetic number, because the mean of its divisors is an integer number (252656826076).

Almost surely, 2^{1326445289743} is an apocalyptic number.

1326445289743 is a deficient number, since it is larger than the sum of its proper divisors (189495666713).

1326445289743 is an frugal number, since it uses more digits than its factorization.

1326445289743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870621 (or 435314 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 58.

The spelling of 1326445289743 in words is "one trillion, three hundred twenty-six billion, four hundred forty-five million, two hundred eighty-nine thousand, seven hundred forty-three".