1443428243441 has 4 divisors (see below), whose sum is σ = 1456670704500. Its totient is φ = 1430185782384.

The previous prime is 1443428243407. The next prime is 1443428243459.

It is a happy number.

1443428243441 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 768303087841 + 675125155600 = 876529^2 + 821660^2 .

It is a cyclic number.

It is not a de Polignac number, because 1443428243441 - 2⁶ = 1443428243377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1443428243392 and 1443428243401.

It is not an unprimeable number, because it can be changed into a prime (1443428243401) 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, 6621230366 + ... + 6621230583.

It is an arithmetic number, because the mean of its divisors is an integer number (364167676125).

Almost surely, 2^{1443428243441} is an apocalyptic number.

It is an amenable number.

1443428243441 is a deficient number, since it is larger than the sum of its proper divisors (13242461059).

1443428243441 is a wasteful number, since it uses less digits than its factorization.

1443428243441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13242461058.

The product of its digits is 1179648, while the sum is 44.

The spelling of 1443428243441 in words is "one trillion, four hundred forty-three billion, four hundred twenty-eight million, two hundred forty-three thousand, four hundred forty-one".