4943021749 has 2 divisors, whose sum is σ = 4943021750. Its totient is φ = 4943021748.

The previous prime is 4943021719. The next prime is 4943021753. The reversal of 4943021749 is 9471203494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3167663524 + 1775358225 = 56282^2 + 42135^2 .

It is a cyclic number.

It is not a de Polignac number, because 4943021749 - 2⁵ = 4943021717 is a prime.

It is a super-2 number, since 2×4943021749² = 48866928022174038002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4943021719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2471510874 + 2471510875.

It is an arithmetic number, because the mean of its divisors is an integer number (2471510875).

Almost surely, 2^4943021749 is an apocalyptic number.

It is an amenable number.

4943021749 is a deficient number, since it is larger than the sum of its proper divisors (1).

4943021749 is an equidigital number, since it uses as much as digits as its factorization.

4943021749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 4943021749 is about 70306.6266364701. The cubic root of 4943021749 is about 1703.4556868165.

The spelling of 4943021749 in words is "four billion, nine hundred forty-three million, twenty-one thousand, seven hundred forty-nine".