4042395445897 has 2 divisors, whose sum is σ = 4042395445898. Its totient is φ = 4042395445896.

The previous prime is 4042395445867. The next prime is 4042395445901. The reversal of 4042395445897 is 7985445932404.

4042395445897 is digitally balanced in base 2, 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., 2148499282176 + 1893896163721 = 1465776^2 + 1376189^2 .

It is a cyclic number.

It is not a de Polignac number, because 4042395445897 - 2⁷ = 4042395445769 is a prime.

It is not a weakly prime, because it can be changed into another prime (4042395445867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021197722948 + 2021197722949.

It is an arithmetic number, because the mean of its divisors is an integer number (2021197722949).

Almost surely, 2^{4042395445897} is an apocalyptic number.

It is an amenable number.

4042395445897 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042395445897 is an equidigital number, since it uses as much as digits as its factorization.

4042395445897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174182400, while the sum is 64.

The spelling of 4042395445897 in words is "four trillion, forty-two billion, three hundred ninety-five million, four hundred forty-five thousand, eight hundred ninety-seven".