1428730144443 has 12 divisors (see below), whose sum is σ = 2358538651248. Its totient is φ = 816417225360.

The previous prime is 1428730144427. The next prime is 1428730144477. The reversal of 1428730144443 is 3444410378241.

1428730144443 is a `hidden beast` number, since 14 + 28 + 7 + 30 + 144 + 443 = 666.

It is not a de Polignac number, because 1428730144443 - 2⁴ = 1428730144427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1428730144493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11339128068 + ... + 11339128193.

It is an arithmetic number, because the mean of its divisors is an integer number (196544887604).

Almost surely, 2^{1428730144443} is an apocalyptic number.

1428730144443 is a deficient number, since it is larger than the sum of its proper divisors (929808506805).

1428730144443 is a wasteful number, since it uses less digits than its factorization.

1428730144443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22678256274 (or 22678256271 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 45.

The spelling of 1428730144443 in words is "one trillion, four hundred twenty-eight billion, seven hundred thirty million, one hundred forty-four thousand, four hundred forty-three".