6456443632 has 40 divisors (see below), whose sum is σ = 12760433280. Its totient is φ = 3163765440.

The previous prime is 6456443621. The next prime is 6456443647. The reversal of 6456443632 is 2363446546.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302133 + ... + 322795.

It is an arithmetic number, because the mean of its divisors is an integer number (319010832).

Almost surely, 2^6456443632 is an apocalyptic number.

It is an amenable number.

6456443632 is a deficient number, since it is larger than the sum of its proper divisors (6303989648).

6456443632 is a wasteful number, since it uses less digits than its factorization.

6456443632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21061 (or 21055 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 43.

The square root of 6456443632 is about 80351.9983074472. The cubic root of 6456443632 is about 1862.0776521552.

The spelling of 6456443632 in words is "six billion, four hundred fifty-six million, four hundred forty-three thousand, six hundred thirty-two".