63543466543 has 4 divisors (see below), whose sum is σ = 64742399928. Its totient is φ = 62344533160.

The previous prime is 63543466529. The next prime is 63543466549. The reversal of 63543466543 is 34566434536.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63543466543 - 2¹³ = 63543458351 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63543466549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 599466613 + ... + 599466718.

It is an arithmetic number, because the mean of its divisors is an integer number (16185599982).

Almost surely, 2^63543466543 is an apocalyptic number.

63543466543 is a deficient number, since it is larger than the sum of its proper divisors (1198933385).

63543466543 is a wasteful number, since it uses less digits than its factorization.

63543466543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198933384.

The product of its digits is 9331200, while the sum is 49.

The spelling of 63543466543 in words is "sixty-three billion, five hundred forty-three million, four hundred sixty-six thousand, five hundred forty-three".