6389489744 has 40 divisors (see below), whose sum is σ = 13870073568. Its totient is φ = 2825815680.

The previous prime is 6389489731. The next prime is 6389489747. The reversal of 6389489744 is 4479849836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6389489747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484082 + ... + 497105.

Almost surely, 2^6389489744 is an apocalyptic number.

It is an amenable number.

6389489744 is an abundant number, since it is smaller than the sum of its proper divisors (7480583824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6389489744 is a wasteful number, since it uses less digits than its factorization.

6389489744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981243 (or 981237 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 62.

The square root of 6389489744 is about 79934.2839087209. The cubic root of 6389489744 is about 1855.6186372733.

The spelling of 6389489744 in words is "six billion, three hundred eighty-nine million, four hundred eighty-nine thousand, seven hundred forty-four".