5517644406943 has 4 divisors (see below), whose sum is σ = 5572274549688. Its totient is φ = 5463014264200.

The previous prime is 5517644406929. The next prime is 5517644407027. The reversal of 5517644406943 is 3496044467155.

It is a happy number.

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 5517644406943 - 2⁹ = 5517644406431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5517644406143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27315071221 + ... + 27315071422.

It is an arithmetic number, because the mean of its divisors is an integer number (1393068637422).

Almost surely, 2^{5517644406943} is an apocalyptic number.

5517644406943 is a deficient number, since it is larger than the sum of its proper divisors (54630142745).

5517644406943 is a wasteful number, since it uses less digits than its factorization.

5517644406943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54630142744.

The product of its (nonzero) digits is 43545600, while the sum is 58.

The spelling of 5517644406943 in words is "five trillion, five hundred seventeen billion, six hundred forty-four million, four hundred six thousand, nine hundred forty-three".