4205323649 has 2 divisors, whose sum is σ = 4205323650. Its totient is φ = 4205323648.

The previous prime is 4205323607. The next prime is 4205323691. The reversal of 4205323649 is 9463235024.

4205323649 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (4205323607) and next prime (4205323691).

It can be written as a sum of positive squares in only one way, i.e., 3478050625 + 727273024 = 58975^2 + 26968^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4205323649 is a prime.

It is not a weakly prime, because it can be changed into another prime (4205323699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2102661824 + 2102661825.

It is an arithmetic number, because the mean of its divisors is an integer number (2102661825).

Almost surely, 2^4205323649 is an apocalyptic number.

It is an amenable number.

4205323649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4205323649 is an equidigital number, since it uses as much as digits as its factorization.

4205323649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 38.

The square root of 4205323649 is about 64848.4668207352. The cubic root of 4205323649 is about 1614.1100508864.

The spelling of 4205323649 in words is "four billion, two hundred five million, three hundred twenty-three thousand, six hundred forty-nine".