6449239118 has 8 divisors (see below), whose sum is σ = 11055838512. Its totient is φ = 2763959616.

The previous prime is 6449239117. The next prime is 6449239177. The reversal of 6449239118 is 8119329446.

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

It is a super-2 number, since 2×6449239118² = 83185370402282835848, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6449239117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230329955 + ... + 230329982.

It is an arithmetic number, because the mean of its divisors is an integer number (1381979814).

Almost surely, 2^6449239118 is an apocalyptic number.

6449239118 is a deficient number, since it is larger than the sum of its proper divisors (4606599394).

6449239118 is a wasteful number, since it uses less digits than its factorization.

6449239118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460659946.

The product of its digits is 373248, while the sum is 47.

The square root of 6449239118 is about 80307.1548369135. The cubic root of 6449239118 is about 1861.3847858095.

The spelling of 6449239118 in words is "six billion, four hundred forty-nine million, two hundred thirty-nine thousand, one hundred eighteen".