4442471643 has 24 divisors (see below), whose sum is σ = 6517967680. Its totient is φ = 2683763280.

The previous prime is 4442471629. The next prime is 4442471651. The reversal of 4442471643 is 3461742444.

It is not a de Polignac number, because 4442471643 - 2²⁰ = 4441423067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4442471623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43513 + ... + 103818.

Almost surely, 2^4442471643 is an apocalyptic number.

4442471643 is a deficient number, since it is larger than the sum of its proper divisors (2075496037).

4442471643 is a wasteful number, since it uses less digits than its factorization.

4442471643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147399 (or 147376 counting only the distinct ones).

The product of its digits is 258048, while the sum is 39.

The square root of 4442471643 is about 66651.8690135543. The cubic root of 4442471643 is about 1643.8980795471.

The spelling of 4442471643 in words is "four billion, four hundred forty-two million, four hundred seventy-one thousand, six hundred forty-three".