6443707874 has 12 divisors (see below), whose sum is σ = 9755086194. Its totient is φ = 3192283872.

The previous prime is 6443707843. The next prime is 6443707877. The reversal of 6443707874 is 4787073446.

It can be written as a sum of positive squares in 3 ways, for example, as 6426427225 + 17280649 = 80165^2 + 4157^2 .

It is not an unprimeable number, because it can be changed into a prime (6443707877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111827 + ... + 159350.

Almost surely, 2^6443707874 is an apocalyptic number.

6443707874 is a deficient number, since it is larger than the sum of its proper divisors (3311378320).

6443707874 is a wasteful number, since it uses less digits than its factorization.

6443707874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271397 (or 271288 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 50.

The square root of 6443707874 is about 80272.7093974035. The cubic root of 6443707874 is about 1860.8524895152.

The spelling of 6443707874 in words is "six billion, four hundred forty-three million, seven hundred seven thousand, eight hundred seventy-four".