6441548990 has 8 divisors (see below), whose sum is σ = 11594788200. Its totient is φ = 2576619592.

The previous prime is 6441548977. The next prime is 6441549011. The reversal of 6441548990 is 998451446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322077440 + ... + 322077459.

It is an arithmetic number, because the mean of its divisors is an integer number (1449348525).

Almost surely, 2^6441548990 is an apocalyptic number.

6441548990 is a deficient number, since it is larger than the sum of its proper divisors (5153239210).

6441548990 is a wasteful number, since it uses less digits than its factorization.

6441548990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644154906.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The square root of 6441548990 is about 80259.2610855595. The cubic root of 6441548990 is about 1860.6446478251.

The spelling of 6441548990 in words is "six billion, four hundred forty-one million, five hundred forty-eight thousand, nine hundred ninety".