2085657193 has 2 divisors, whose sum is σ = 2085657194. Its totient is φ = 2085657192.

The previous prime is 2085657191. The next prime is 2085657199. The reversal of 2085657193 is 3917565802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1401154624 + 684502569 = 37432^2 + 26163^2 .

It is a cyclic number.

It is not a de Polignac number, because 2085657193 - 2¹ = 2085657191 is a prime.

Together with 2085657191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2085657191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1042828596 + 1042828597.

It is an arithmetic number, because the mean of its divisors is an integer number (1042828597).

Almost surely, 2^2085657193 is an apocalyptic number.

It is an amenable number.

2085657193 is a deficient number, since it is larger than the sum of its proper divisors (1).

2085657193 is an equidigital number, since it uses as much as digits as its factorization.

2085657193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 46.

The square root of 2085657193 is about 45668.9959710086. The cubic root of 2085657193 is about 1277.6570896855.

The spelling of 2085657193 in words is "two billion, eighty-five million, six hundred fifty-seven thousand, one hundred ninety-three".