6443573428 has 12 divisors (see below), whose sum is σ = 11276822592. Its totient is φ = 3221624120.

The previous prime is 6443573419. The next prime is 6443573501. The reversal of 6443573428 is 8243753446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113301 + ... + 160387.

It is an arithmetic number, because the mean of its divisors is an integer number (939735216).

Almost surely, 2^6443573428 is an apocalyptic number.

It is an amenable number.

6443573428 is a deficient number, since it is larger than the sum of its proper divisors (4833249164).

6443573428 is a wasteful number, since it uses less digits than its factorization.

6443573428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81302 (or 81300 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 46.

The square root of 6443573428 is about 80271.8719602327. The cubic root of 6443573428 is about 1860.8395473853.

The spelling of 6443573428 in words is "six billion, four hundred forty-three million, five hundred seventy-three thousand, four hundred twenty-eight".