6447468493 has 16 divisors (see below), whose sum is σ = 6910041600. Its totient is φ = 5997466800.

The previous prime is 6447468481. The next prime is 6447468509. The reversal of 6447468493 is 3948647446.

It is a cyclic number.

It is not a de Polignac number, because 6447468493 - 2⁹ = 6447467981 is a prime.

Its product of digits (13934592) is a multiple of the sum of its prime divisors (6912).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6447468403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1099018 + ... + 1104868.

It is an arithmetic number, because the mean of its divisors is an integer number (431877600).

Almost surely, 2^6447468493 is an apocalyptic number.

It is an amenable number.

6447468493 is a deficient number, since it is larger than the sum of its proper divisors (462573107).

6447468493 is a wasteful number, since it uses less digits than its factorization.

6447468493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6912.

The product of its digits is 13934592, while the sum is 55.

The square root of 6447468493 is about 80296.1300001438. The cubic root of 6447468493 is about 1861.2144237951.

The spelling of 6447468493 in words is "six billion, four hundred forty-seven million, four hundred sixty-eight thousand, four hundred ninety-three".