2005412635543 has 4 divisors (see below), whose sum is σ = 2005415697880. Its totient is φ = 2005409573208.

The previous prime is 2005412635529. The next prime is 2005412635553. The reversal of 2005412635543 is 3455362145002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2005412635543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2005412635496 and 2005412635505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005412635553) 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, 107853 + ... + 2005606.

It is an arithmetic number, because the mean of its divisors is an integer number (501353924470).

Almost surely, 2^{2005412635543} is an apocalyptic number.

2005412635543 is a deficient number, since it is larger than the sum of its proper divisors (3062337).

2005412635543 is an equidigital number, since it uses as much as digits as its factorization.

2005412635543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062336.

The product of its (nonzero) digits is 432000, while the sum is 40.

The spelling of 2005412635543 in words is "two trillion, five billion, four hundred twelve million, six hundred thirty-five thousand, five hundred forty-three".