6541544364 has 24 divisors (see below), whose sum is σ = 15300934320. Its totient is φ = 2175181824.

The previous prime is 6541544357. The next prime is 6541544369. The reversal of 6541544364 is 4634451456.

It is not an unprimeable number, because it can be changed into a prime (6541544369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661509 + ... + 671324.

It is an arithmetic number, because the mean of its divisors is an integer number (637538930).

Almost surely, 2^6541544364 is an apocalyptic number.

It is an amenable number.

6541544364 is an abundant number, since it is smaller than the sum of its proper divisors (8759389956).

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

6541544364 is a wasteful number, since it uses less digits than its factorization.

6541544364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333249 (or 1333247 counting only the distinct ones).

The product of its digits is 691200, while the sum is 42.

The square root of 6541544364 is about 80879.8143172943. The cubic root of 6541544364 is about 1870.2231580937.

The spelling of 6541544364 in words is "six billion, five hundred forty-one million, five hundred forty-four thousand, three hundred sixty-four".