6472421686766 has 32 divisors (see below), whose sum is σ = 11234479999680. Its totient is φ = 2739379838976.

The previous prime is 6472421686741. The next prime is 6472421686777. The reversal of 6472421686766 is 6676861242746.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8372231 + ... + 9112578.

It is an arithmetic number, because the mean of its divisors is an integer number (351077499990).

Almost surely, 2^{6472421686766} is an apocalyptic number.

6472421686766 is a deficient number, since it is larger than the sum of its proper divisors (4762058312914).

6472421686766 is a wasteful number, since it uses less digits than its factorization.

6472421686766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17485148.

The product of its digits is 195084288, while the sum is 65.

The spelling of 6472421686766 in words is "six trillion, four hundred seventy-two billion, four hundred twenty-one million, six hundred eighty-six thousand, seven hundred sixty-six".