6441216458 has 8 divisors (see below), whose sum is σ = 9844123428. Its totient is φ = 3159841984.

The previous prime is 6441216409. The next prime is 6441216497. The reversal of 6441216458 is 8546121446.

It can be written as a sum of positive squares in 2 ways, for example, as 5051939929 + 1389276529 = 71077^2 + 37273^2 .

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

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, 30382991 + ... + 30383202.

Almost surely, 2^6441216458 is an apocalyptic number.

6441216458 is a deficient number, since it is larger than the sum of its proper divisors (3402906970).

6441216458 is a wasteful number, since it uses less digits than its factorization.

6441216458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60766248.

The product of its digits is 184320, while the sum is 41.

The square root of 6441216458 is about 80257.1894474258. The cubic root of 6441216458 is about 1860.6126299293.

The spelling of 6441216458 in words is "six billion, four hundred forty-one million, two hundred sixteen thousand, four hundred fifty-eight".