5343644389 has 2 divisors, whose sum is σ = 5343644390. Its totient is φ = 5343644388.

The previous prime is 5343644363. The next prime is 5343644393. The reversal of 5343644389 is 9834463435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4114581025 + 1229063364 = 64145^2 + 35058^2 .

It is a cyclic number.

It is not a de Polignac number, because 5343644389 - 2⁷ = 5343644261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5343644309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2671822194 + 2671822195.

It is an arithmetic number, because the mean of its divisors is an integer number (2671822195).

Almost surely, 2^5343644389 is an apocalyptic number.

It is an amenable number.

5343644389 is a deficient number, since it is larger than the sum of its proper divisors (1).

5343644389 is an equidigital number, since it uses as much as digits as its factorization.

5343644389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3732480, while the sum is 49.

The square root of 5343644389 is about 73100.2352184998. The cubic root of 5343644389 is about 1748.2861467479.

The spelling of 5343644389 in words is "five billion, three hundred forty-three million, six hundred forty-four thousand, three hundred eighty-nine".