6443379443 has 2 divisors, whose sum is σ = 6443379444. Its totient is φ = 6443379442.

The previous prime is 6443379421. The next prime is 6443379473. The reversal of 6443379443 is 3449733446.

6443379443 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6443379443 - 2¹⁰ = 6443378419 is a prime.

It is a super-3 number, since 3×6443379443³ (a number of 30 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (6443379403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3221689721 + 3221689722.

It is an arithmetic number, because the mean of its divisors is an integer number (3221689722).

Almost surely, 2^6443379443 is an apocalyptic number.

6443379443 is a deficient number, since it is larger than the sum of its proper divisors (1).

6443379443 is an equidigital number, since it uses as much as digits as its factorization.

6443379443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 47.

The square root of 6443379443 is about 80270.6636511746. The cubic root of 6443379443 is about 1860.8208735554.

The spelling of 6443379443 in words is "six billion, four hundred forty-three million, three hundred seventy-nine thousand, four hundred forty-three".