1443940493441 has 4 divisors (see below), whose sum is σ = 1446375469572. Its totient is φ = 1441505517312.

The previous prime is 1443940493399. The next prime is 1443940493449.

1443940493441 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 663051918400 + 780888575041 = 814280^2 + 883679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1443940493441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1443940493441.

It is not an unprimeable number, because it can be changed into a prime (1443940493449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1217487176 + ... + 1217488361.

It is an arithmetic number, because the mean of its divisors is an integer number (361593867393).

Almost surely, 2^{1443940493441} is an apocalyptic number.

It is an amenable number.

1443940493441 is a deficient number, since it is larger than the sum of its proper divisors (2434976131).

1443940493441 is an equidigital number, since it uses as much as digits as its factorization.

1443940493441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2434976130.

The product of its (nonzero) digits is 2985984, while the sum is 50.

The spelling of 1443940493441 in words is "one trillion, four hundred forty-three billion, nine hundred forty million, four hundred ninety-three thousand, four hundred forty-one".