6543531554 has 8 divisors (see below), whose sum is σ = 11217482688. Its totient is φ = 2804370660.

The previous prime is 6543531539. The next prime is 6543531559. The reversal of 6543531554 is 4551353456.

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

It is not an unprimeable number, because it can be changed into a prime (6543531559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233697542 + ... + 233697569.

It is an arithmetic number, because the mean of its divisors is an integer number (1402185336).

Almost surely, 2^6543531554 is an apocalyptic number.

6543531554 is a deficient number, since it is larger than the sum of its proper divisors (4673951134).

6543531554 is a wasteful number, since it uses less digits than its factorization.

6543531554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467395120.

The product of its digits is 540000, while the sum is 41.

The square root of 6543531554 is about 80892.0982173166. The cubic root of 6543531554 is about 1870.4125176844.

The spelling of 6543531554 in words is "six billion, five hundred forty-three million, five hundred thirty-one thousand, five hundred fifty-four".