5443166389 has 2 divisors, whose sum is σ = 5443166390. Its totient is φ = 5443166388.

The previous prime is 5443166387. The next prime is 5443166411. The reversal of 5443166389 is 9836613445.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4144140625 + 1299025764 = 64375^2 + 36042^2 .

It is a cyclic number.

It is not a de Polignac number, because 5443166389 - 2¹ = 5443166387 is a prime.

Together with 5443166387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5443166387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2721583194 + 2721583195.

It is an arithmetic number, because the mean of its divisors is an integer number (2721583195).

Almost surely, 2^5443166389 is an apocalyptic number.

It is an amenable number.

5443166389 is a deficient number, since it is larger than the sum of its proper divisors (1).

5443166389 is an equidigital number, since it uses as much as digits as its factorization.

5443166389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 49.

The square root of 5443166389 is about 73777.8177299925. The cubic root of 5443166389 is about 1759.0730299622.

The spelling of 5443166389 in words is "five billion, four hundred forty-three million, one hundred sixty-six thousand, three hundred eighty-nine".