1428443365441 has 8 divisors (see below), whose sum is σ = 1452770799840. Its totient is φ = 1404119815488.

The previous prime is 1428443365439. The next prime is 1428443365451. The reversal of 1428443365441 is 1445633448241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1428443365441 - 2¹ = 1428443365439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1428443365451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224536 + ... + 1705081.

It is an arithmetic number, because the mean of its divisors is an integer number (181596349980).

Almost surely, 2^{1428443365441} is an apocalyptic number.

It is an amenable number.

1428443365441 is a deficient number, since it is larger than the sum of its proper divisors (24327434399).

1428443365441 is a wasteful number, since it uses less digits than its factorization.

1428443365441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942223.

The product of its digits is 4423680, while the sum is 49.

The spelling of 1428443365441 in words is "one trillion, four hundred twenty-eight billion, four hundred forty-three million, three hundred sixty-five thousand, four hundred forty-one".