6541811632 has 20 divisors (see below), whose sum is σ = 12853280016. Its totient is φ = 3224836160.

The previous prime is 6541811609. The next prime is 6541811641. The reversal of 6541811632 is 2361181456.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6541811591 and 6541811600.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2878183 + ... + 2880454.

Almost surely, 2^6541811632 is an apocalyptic number.

It is an amenable number.

6541811632 is a deficient number, since it is larger than the sum of its proper divisors (6311468384).

6541811632 is a wasteful number, since it uses less digits than its factorization.

6541811632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5758716 (or 5758710 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 6541811632 is about 80881.4665544586. The cubic root of 6541811632 is about 1870.2486283276.

The spelling of 6541811632 in words is "six billion, five hundred forty-one million, eight hundred eleven thousand, six hundred thirty-two".