6443768896 has 28 divisors (see below), whose sum is σ = 12790554048. Its totient is φ = 3220952192.

The previous prime is 6443768867. The next prime is 6443768909. The reversal of 6443768896 is 6988673446.

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, 243885 + ... + 269011.

Almost surely, 2^6443768896 is an apocalyptic number.

It is an amenable number.

6443768896 is a deficient number, since it is larger than the sum of its proper divisors (6346785152).

6443768896 is a wasteful number, since it uses less digits than its factorization.

6443768896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29146 (or 29136 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 61.

The square root of 6443768896 is about 80273.0894883211. The cubic root of 6443768896 is about 1860.8583635960.

The spelling of 6443768896 in words is "six billion, four hundred forty-three million, seven hundred sixty-eight thousand, eight hundred ninety-six".