6543523412 has 24 divisors (see below), whose sum is σ = 11814895680. Its totient is φ = 3168987840.

The previous prime is 6543523379. The next prime is 6543523417. The reversal of 6543523412 is 2143253456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6543523417) 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, 120728 + ... + 166319.

It is an arithmetic number, because the mean of its divisors is an integer number (492287320).

Almost surely, 2^6543523412 is an apocalyptic number.

It is an amenable number.

6543523412 is a deficient number, since it is larger than the sum of its proper divisors (5271372268).

6543523412 is a wasteful number, since it uses less digits than its factorization.

6543523412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287231 (or 287229 counting only the distinct ones).

The product of its digits is 86400, while the sum is 35.

The square root of 6543523412 is about 80892.0478910010. The cubic root of 6543523412 is about 1870.4117419104.

Adding to 6543523412 its reverse (2143253456), we get a palindrome (8686776868).

The spelling of 6543523412 in words is "six billion, five hundred forty-three million, five hundred twenty-three thousand, four hundred twelve".