6443464047 has 16 divisors (see below), whose sum is σ = 8618818560. Its totient is φ = 4281897312.

The previous prime is 6443464033. The next prime is 6443464067. The reversal of 6443464047 is 7404643446.

It is not a de Polignac number, because 6443464047 - 2²⁰ = 6442415471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6443464067) 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 15 ways as a sum of consecutive naturals, for example, 1830333 + ... + 1833849.

It is an arithmetic number, because the mean of its divisors is an integer number (538676160).

Almost surely, 2^6443464047 is an apocalyptic number.

6443464047 is a deficient number, since it is larger than the sum of its proper divisors (2175354513).

6443464047 is a wasteful number, since it uses less digits than its factorization.

6443464047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5302.

The product of its (nonzero) digits is 774144, while the sum is 42.

The square root of 6443464047 is about 80271.1906414749. The cubic root of 6443464047 is about 1860.8290179461.

The spelling of 6443464047 in words is "six billion, four hundred forty-three million, four hundred sixty-four thousand, forty-seven".