6443536472 has 16 divisors (see below), whose sum is σ = 12087306000. Its totient is φ = 3220254880.

The previous prime is 6443536441. The next prime is 6443536483. The reversal of 6443536472 is 2746353446.

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, 170972 + ... + 205227.

It is an arithmetic number, because the mean of its divisors is an integer number (755456625).

Almost surely, 2^6443536472 is an apocalyptic number.

It is an amenable number.

6443536472 is a deficient number, since it is larger than the sum of its proper divisors (5643769528).

6443536472 is a wasteful number, since it uses less digits than its factorization.

6443536472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378346 (or 378342 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 44.

The square root of 6443536472 is about 80271.6417671895. The cubic root of 6443536472 is about 1860.8359898708.

The spelling of 6443536472 in words is "six billion, four hundred forty-three million, five hundred thirty-six thousand, four hundred seventy-two".