6544241538 has 8 divisors (see below), whose sum is σ = 13088483088. Its totient is φ = 2181413844.

The previous prime is 6544241531. The next prime is 6544241567. The reversal of 6544241538 is 8351424456.

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

6544241538 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 6544241538.

It is not an unprimeable number, because it can be changed into a prime (6544241531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545353456 + ... + 545353467.

It is an arithmetic number, because the mean of its divisors is an integer number (1636060386).

Almost surely, 2^6544241538 is an apocalyptic number.

6544241538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6544241538 is a wasteful number, since it uses less digits than its factorization.

6544241538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090706928.

The product of its digits is 460800, while the sum is 42.

The square root of 6544241538 is about 80896.4865615312. The cubic root of 6544241538 is about 1870.4801628555.

The spelling of 6544241538 in words is "six billion, five hundred forty-four million, two hundred forty-one thousand, five hundred thirty-eight".