6438241258 has 8 divisors (see below), whose sum is σ = 10225442052. Its totient is φ = 3029760576.

The previous prime is 6438241223. The next prime is 6438241261. The reversal of 6438241258 is 8521428346.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6186923649 + 251317609 = 78657^2 + 15853^2 .

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, 94679985 + ... + 94680052.

Almost surely, 2^6438241258 is an apocalyptic number.

6438241258 is a deficient number, since it is larger than the sum of its proper divisors (3787200794).

6438241258 is a wasteful number, since it uses less digits than its factorization.

6438241258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189360056.

The product of its digits is 368640, while the sum is 43.

The square root of 6438241258 is about 80238.6518954550. The cubic root of 6438241258 is about 1860.3261132822.

The spelling of 6438241258 in words is "six billion, four hundred thirty-eight million, two hundred forty-one thousand, two hundred fifty-eight".