6445607384 has 16 divisors (see below), whose sum is σ = 12105047400. Its totient is φ = 3217594752.

The previous prime is 6445607303. The next prime is 6445607429. The reversal of 6445607384 is 4837065446.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 645857 + ... + 655760.

Almost surely, 2^6445607384 is an apocalyptic number.

It is an amenable number.

6445607384 is a deficient number, since it is larger than the sum of its proper divisors (5659440016).

6445607384 is a wasteful number, since it uses less digits than its factorization.

6445607384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302242 (or 1302238 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 47.

The square root of 6445607384 is about 80284.5401307126. The cubic root of 6445607384 is about 1861.0353221695.

The spelling of 6445607384 in words is "six billion, four hundred forty-five million, six hundred seven thousand, three hundred eighty-four".