2085291617 has 2 divisors, whose sum is σ = 2085291618. Its totient is φ = 2085291616.

The previous prime is 2085291599. The next prime is 2085291641. The reversal of 2085291617 is 7161925802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2016997921 + 68293696 = 44911^2 + 8264^2 .

It is a cyclic number.

It is not a de Polignac number, because 2085291617 - 2¹⁰ = 2085290593 is a prime.

It is a super-2 number, since 2×2085291617² = 8696882255860949378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2085291697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1042645808 + 1042645809.

It is an arithmetic number, because the mean of its divisors is an integer number (1042645809).

Almost surely, 2^2085291617 is an apocalyptic number.

It is an amenable number.

2085291617 is a deficient number, since it is larger than the sum of its proper divisors (1).

2085291617 is an equidigital number, since it uses as much as digits as its factorization.

2085291617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 2085291617 is about 45664.9933428222. The cubic root of 2085291617 is about 1277.5824356688.

The spelling of 2085291617 in words is "two billion, eighty-five million, two hundred ninety-one thousand, six hundred seventeen".