4394505361 has 2 divisors, whose sum is σ = 4394505362. Its totient is φ = 4394505360.

The previous prime is 4394505359. The next prime is 4394505371. The reversal of 4394505361 is 1635054934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2754255361 + 1640250000 = 52481^2 + 40500^2 .

It is a cyclic number.

It is not a de Polignac number, because 4394505361 - 2¹ = 4394505359 is a prime.

Together with 4394505359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4394505371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2197252680 + 2197252681.

It is an arithmetic number, because the mean of its divisors is an integer number (2197252681).

Almost surely, 2^4394505361 is an apocalyptic number.

It is an amenable number.

4394505361 is a deficient number, since it is larger than the sum of its proper divisors (1).

4394505361 is an equidigital number, since it uses as much as digits as its factorization.

4394505361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 4394505361 is about 66291.0654688850. The cubic root of 4394505361 is about 1637.9601548587.

The spelling of 4394505361 in words is "four billion, three hundred ninety-four million, five hundred five thousand, three hundred sixty-one".