6447117446 has 64 divisors (see below), whose sum is σ = 12216420864. Its totient is φ = 2478816000.

The previous prime is 6447117377. The next prime is 6447117463.

It is a happy number.

6447117446 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 6447117397 and 6447117406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7107725 + ... + 7108631.

It is an arithmetic number, because the mean of its divisors is an integer number (190881576).

Almost surely, 2^6447117446 is an apocalyptic number.

6447117446 is a deficient number, since it is larger than the sum of its proper divisors (5769303418).

6447117446 is a wasteful number, since it uses less digits than its factorization.

6447117446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485.

The product of its digits is 451584, while the sum is 44.

The square root of 6447117446 is about 80293.9440182135. The cubic root of 6447117446 is about 1861.1806438395.

The spelling of 6447117446 in words is "six billion, four hundred forty-seven million, one hundred seventeen thousand, four hundred forty-six".