6447473708 has 18 divisors (see below), whose sum is σ = 12217773204. Its totient is φ = 2975756784.

The previous prime is 6447473653. The next prime is 6447473743. The reversal of 6447473708 is 8073747446.

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 5 ways as a sum of consecutive naturals, for example, 4768166 + ... + 4769517.

It is an arithmetic number, because the mean of its divisors is an integer number (678765178).

Almost surely, 2^6447473708 is an apocalyptic number.

It is an amenable number.

6447473708 is a deficient number, since it is larger than the sum of its proper divisors (5770299496).

6447473708 is a wasteful number, since it uses less digits than its factorization.

6447473708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9537713 (or 9537698 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 50.

The square root of 6447473708 is about 80296.1624736824. The cubic root of 6447473708 is about 1861.2149256060.

The spelling of 6447473708 in words is "six billion, four hundred forty-seven million, four hundred seventy-three thousand, seven hundred eight".