6449138084 has 24 divisors (see below), whose sum is σ = 11779568640. Its totient is φ = 3083615744.

The previous prime is 6449138077. The next prime is 6449138119. The reversal of 6449138084 is 4808319446.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612932 + ... + 623364.

It is an arithmetic number, because the mean of its divisors is an integer number (490815360).

Almost surely, 2^6449138084 is an apocalyptic number.

It is an amenable number.

6449138084 is a deficient number, since it is larger than the sum of its proper divisors (5330430556).

6449138084 is a wasteful number, since it uses less digits than its factorization.

6449138084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17179 (or 17177 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The square root of 6449138084 is about 80306.5257871364. The cubic root of 6449138084 is about 1861.3750655862.

The spelling of 6449138084 in words is "six billion, four hundred forty-nine million, one hundred thirty-eight thousand, eighty-four".