6438350368 has 24 divisors (see below), whose sum is σ = 12798571968. Its totient is φ = 3187919424.

The previous prime is 6438350339. The next prime is 6438350441. The reversal of 6438350368 is 8630538346.

It is a super-2 number, since 2×6438350368² = 82904710922251470848, which contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 973396 + ... + 979987.

It is an arithmetic number, because the mean of its divisors is an integer number (533273832).

Almost surely, 2^6438350368 is an apocalyptic number.

It is an amenable number.

6438350368 is a deficient number, since it is larger than the sum of its proper divisors (6360221600).

6438350368 is a wasteful number, since it uses less digits than its factorization.

6438350368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953496 (or 1953488 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 46.

The square root of 6438350368 is about 80239.3318018040. The cubic root of 6438350368 is about 1860.3366223134.

The spelling of 6438350368 in words is "six billion, four hundred thirty-eight million, three hundred fifty thousand, three hundred sixty-eight".