5424281921 has 2 divisors, whose sum is σ = 5424281922. Its totient is φ = 5424281920.

The previous prime is 5424281917. The next prime is 5424281923. The reversal of 5424281921 is 1291824245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5267130625 + 157151296 = 72575^2 + 12536^2 .

It is a cyclic number.

It is not a de Polignac number, because 5424281921 - 2² = 5424281917 is a prime.

Together with 5424281923, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5424281923) 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, 2712140960 + 2712140961.

It is an arithmetic number, because the mean of its divisors is an integer number (2712140961).

Almost surely, 2^5424281921 is an apocalyptic number.

It is an amenable number.

5424281921 is a deficient number, since it is larger than the sum of its proper divisors (1).

5424281921 is an equidigital number, since it uses as much as digits as its factorization.

5424281921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 38.

The square root of 5424281921 is about 73649.7245140808. The cubic root of 5424281921 is about 1757.0363692562.

The spelling of 5424281921 in words is "five billion, four hundred twenty-four million, two hundred eighty-one thousand, nine hundred twenty-one".