5618744321 has 2 divisors, whose sum is σ = 5618744322. Its totient is φ = 5618744320.

The previous prime is 5618744291. The next prime is 5618744323. The reversal of 5618744321 is 1234478165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5187600625 + 431143696 = 72025^2 + 20764^2 .

It is a cyclic number.

It is not a de Polignac number, because 5618744321 - 2¹⁰ = 5618743297 is a prime.

It is a Sophie Germain prime.

Together with 5618744323, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5618744323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2809372160 + 2809372161.

It is an arithmetic number, because the mean of its divisors is an integer number (2809372161).

Almost surely, 2^5618744321 is an apocalyptic number.

It is an amenable number.

5618744321 is a deficient number, since it is larger than the sum of its proper divisors (1).

5618744321 is an equidigital number, since it uses as much as digits as its factorization.

5618744321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 41.

The square root of 5618744321 is about 74958.2838717643. The cubic root of 5618744321 is about 1777.7871252415.

The spelling of 5618744321 in words is "five billion, six hundred eighteen million, seven hundred forty-four thousand, three hundred twenty-one".