6438448174 has 4 divisors (see below), whose sum is σ = 9657672264. Its totient is φ = 3219224086.

The previous prime is 6438448157. The next prime is 6438448183. The reversal of 6438448174 is 4718448346.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×6438448174² = 82907229778567868552, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1609612042 + ... + 1609612045.

It is an arithmetic number, because the mean of its divisors is an integer number (2414418066).

Almost surely, 2^6438448174 is an apocalyptic number.

6438448174 is a deficient number, since it is larger than the sum of its proper divisors (3219224090).

6438448174 is a wasteful number, since it uses less digits than its factorization.

6438448174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3219224089.

The product of its digits is 2064384, while the sum is 49.

The square root of 6438448174 is about 80239.9412636874. The cubic root of 6438448174 is about 1860.3460424885.

The spelling of 6438448174 in words is "six billion, four hundred thirty-eight million, four hundred forty-eight thousand, one hundred seventy-four".