6543968532 has 24 divisors (see below), whose sum is σ = 15278466336. Its totient is φ = 2180007648.

The previous prime is 6543968527. The next prime is 6543968567. The reversal of 6543968532 is 2358693456.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143563 + ... + 183570.

It is an arithmetic number, because the mean of its divisors is an integer number (636602764).

Almost surely, 2^6543968532 is an apocalyptic number.

It is an amenable number.

6543968532 is an abundant number, since it is smaller than the sum of its proper divisors (8734497804).

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

6543968532 is a wasteful number, since it uses less digits than its factorization.

6543968532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328807 (or 328805 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 51.

The square root of 6543968532 is about 80894.7991653357. The cubic root of 6543968532 is about 1870.4541522320.

The spelling of 6543968532 in words is "six billion, five hundred forty-three million, nine hundred sixty-eight thousand, five hundred thirty-two".