5424218621 has 2 divisors, whose sum is σ = 5424218622. Its totient is φ = 5424218620.

The previous prime is 5424218587. The next prime is 5424218623. The reversal of 5424218621 is 1268124245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5182416121 + 241802500 = 71989^2 + 15550^2 .

It is a cyclic number.

It is not a de Polignac number, because 5424218621 - 2¹⁴ = 5424202237 is a prime.

Together with 5424218623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5424218623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2712109310 + 2712109311.

It is an arithmetic number, because the mean of its divisors is an integer number (2712109311).

Almost surely, 2^5424218621 is an apocalyptic number.

It is an amenable number.

5424218621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5424218621 is an equidigital number, since it uses as much as digits as its factorization.

5424218621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30720, while the sum is 35.

The square root of 5424218621 is about 73649.2947759855. The cubic root of 5424218621 is about 1757.0295345061.

The spelling of 5424218621 in words is "five billion, four hundred twenty-four million, two hundred eighteen thousand, six hundred twenty-one".