6543773456 has 40 divisors (see below), whose sum is σ = 13836763200. Its totient is φ = 2973237120.

The previous prime is 6543773449. The next prime is 6543773513.

6543773456 is nontrivially palindromic in base 10.

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, 541205 + ... + 553163.

It is an arithmetic number, because the mean of its divisors is an integer number (345919080).

Almost surely, 2^6543773456 is an apocalyptic number.

It is an amenable number.

6543773456 is an abundant number, since it is smaller than the sum of its proper divisors (7292989744).

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

6543773456 is a wasteful number, since it uses less digits than its factorization.

6543773456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15087 (or 15081 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 50.

The square root of 6543773456 is about 80893.5934175260. The cubic root of 6543773456 is about 1870.4355659395.

The spelling of 6543773456 in words is "six billion, five hundred forty-three million, seven hundred seventy-three thousand, four hundred fifty-six".