6443379453 has 8 divisors (see below), whose sum is σ = 9818483008. Its totient is φ = 3681931104.

The previous prime is 6443379443. The next prime is 6443379473. The reversal of 6443379453 is 3549733446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6443379453 - 2⁵ = 6443379421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6443379403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153413776 + ... + 153413817.

It is an arithmetic number, because the mean of its divisors is an integer number (1227310376).

Almost surely, 2^6443379453 is an apocalyptic number.

It is an amenable number.

6443379453 is a deficient number, since it is larger than the sum of its proper divisors (3375103555).

6443379453 is a wasteful number, since it uses less digits than its factorization.

6443379453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306827603.

The product of its digits is 3265920, while the sum is 48.

The square root of 6443379453 is about 80270.6637134638. The cubic root of 6443379453 is about 1860.8208745180.

The spelling of 6443379453 in words is "six billion, four hundred forty-three million, three hundred seventy-nine thousand, four hundred fifty-three".