2089791785 has 16 divisors (see below), whose sum is σ = 2564441856. Its totient is φ = 1634131968.

The previous prime is 2089791761. The next prime is 2089791833. The reversal of 2089791785 is 5871979802.

It is a cyclic number.

It is not a de Polignac number, because 2089791785 - 2¹⁰ = 2089790761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2089791785.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188969 + ... + 199721.

It is an arithmetic number, because the mean of its divisors is an integer number (160277616).

Almost surely, 2^2089791785 is an apocalyptic number.

It is an amenable number.

2089791785 is a deficient number, since it is larger than the sum of its proper divisors (474650071).

2089791785 is a wasteful number, since it uses less digits than its factorization.

2089791785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11632.

The product of its (nonzero) digits is 2540160, while the sum is 56.

The square root of 2089791785 is about 45714.2405055580. The cubic root of 2089791785 is about 1278.5008051845.

The spelling of 2089791785 in words is "two billion, eighty-nine million, seven hundred ninety-one thousand, seven hundred eighty-five".