5643969745471 has 2 divisors, whose sum is σ = 5643969745472. Its totient is φ = 5643969745470.

The previous prime is 5643969745433. The next prime is 5643969745591. The reversal of 5643969745471 is 1745479693465.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5643969745471 - 2²⁵ = 5643936191039 is a prime.

It is a super-3 number, since 3×5643969745471³ (a number of 39 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5643969745471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5643969755471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2821984872735 + 2821984872736.

It is an arithmetic number, because the mean of its divisors is an integer number (2821984872736).

Almost surely, 2^{5643969745471} is an apocalyptic number.

5643969745471 is a deficient number, since it is larger than the sum of its proper divisors (1).

5643969745471 is an equidigital number, since it uses as much as digits as its factorization.

5643969745471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 685843200, while the sum is 70.

The spelling of 5643969745471 in words is "five trillion, six hundred forty-three billion, nine hundred sixty-nine million, seven hundred forty-five thousand, four hundred seventy-one".