4536406321 has 2 divisors, whose sum is σ = 4536406322. Its totient is φ = 4536406320.

The previous prime is 4536406279. The next prime is 4536406331. The reversal of 4536406321 is 1236046354.

4536406321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4510599921 + 25806400 = 67161^2 + 5080^2 .

It is a cyclic number.

It is not a de Polignac number, because 4536406321 - 2¹¹ = 4536404273 is a prime.

It is not a weakly prime, because it can be changed into another prime (4536406331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2268203160 + 2268203161.

It is an arithmetic number, because the mean of its divisors is an integer number (2268203161).

Almost surely, 2^4536406321 is an apocalyptic number.

It is an amenable number.

4536406321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4536406321 is an equidigital number, since it uses as much as digits as its factorization.

4536406321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 4536406321 is about 67352.8493903562. The cubic root of 4536406321 is about 1655.4039315500.

The spelling of 4536406321 in words is "four billion, five hundred thirty-six million, four hundred six thousand, three hundred twenty-one".