4085090947897 has 2 divisors, whose sum is σ = 4085090947898. Its totient is φ = 4085090947896.

The previous prime is 4085090947831. The next prime is 4085090947957. The reversal of 4085090947897 is 7987490905804.

4085090947897 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., 3006839232576 + 1078251715321 = 1734024^2 + 1038389^2 .

It is a cyclic number.

It is not a de Polignac number, because 4085090947897 - 2³⁵ = 4050731209529 is a prime.

It is not a weakly prime, because it can be changed into another prime (4085090947097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2042545473948 + 2042545473949.

It is an arithmetic number, because the mean of its divisors is an integer number (2042545473949).

Almost surely, 2^{4085090947897} is an apocalyptic number.

It is an amenable number.

4085090947897 is a deficient number, since it is larger than the sum of its proper divisors (1).

4085090947897 is an equidigital number, since it uses as much as digits as its factorization.

4085090947897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 182891520, while the sum is 70.

The spelling of 4085090947897 in words is "four trillion, eighty-five billion, ninety million, nine hundred forty-seven thousand, eight hundred ninety-seven".