4530496721 has 2 divisors, whose sum is σ = 4530496722. Its totient is φ = 4530496720.

The previous prime is 4530496699. The next prime is 4530496759. The reversal of 4530496721 is 1276940354.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4503081025 + 27415696 = 67105^2 + 5236^2 .

It is a cyclic number.

It is not a de Polignac number, because 4530496721 - 2³⁰ = 3456754897 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4530426721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2265248360 + 2265248361.

It is an arithmetic number, because the mean of its divisors is an integer number (2265248361).

Almost surely, 2^4530496721 is an apocalyptic number.

It is an amenable number.

4530496721 is a deficient number, since it is larger than the sum of its proper divisors (1).

4530496721 is an equidigital number, since it uses as much as digits as its factorization.

4530496721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 4530496721 is about 67308.9646406777. The cubic root of 4530496721 is about 1654.6847847568.

The spelling of 4530496721 in words is "four billion, five hundred thirty million, four hundred ninety-six thousand, seven hundred twenty-one".