6438813270 has 16 divisors (see below), whose sum is σ = 15453151920. Its totient is φ = 1717016864.

The previous prime is 6438813239. The next prime is 6438813317. The reversal of 6438813270 is 723188346.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107313525 + ... + 107313584.

It is an arithmetic number, because the mean of its divisors is an integer number (965821995).

Almost surely, 2^6438813270 is an apocalyptic number.

6438813270 is an abundant number, since it is smaller than the sum of its proper divisors (9014338650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6438813270 is a wasteful number, since it uses less digits than its factorization.

6438813270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214627119.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 6438813270 is about 80242.2162580272. The cubic root of 6438813270 is about 1860.3812058302.

The spelling of 6438813270 in words is "six billion, four hundred thirty-eight million, eight hundred thirteen thousand, two hundred seventy".