5358749821 has 2 divisors, whose sum is σ = 5358749822. Its totient is φ = 5358749820.

The previous prime is 5358749761. The next prime is 5358749839. The reversal of 5358749821 is 1289478535.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5081693796 + 277056025 = 71286^2 + 16645^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5358749821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5358749881) 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, 2679374910 + 2679374911.

It is an arithmetic number, because the mean of its divisors is an integer number (2679374911).

Almost surely, 2^5358749821 is an apocalyptic number.

It is an amenable number.

5358749821 is a deficient number, since it is larger than the sum of its proper divisors (1).

5358749821 is an equidigital number, since it uses as much as digits as its factorization.

5358749821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2419200, while the sum is 52.

The square root of 5358749821 is about 73203.4823010490. The cubic root of 5358749821 is about 1749.9319506600.

The spelling of 5358749821 in words is "five billion, three hundred fifty-eight million, seven hundred forty-nine thousand, eight hundred twenty-one".