2211609859 has 16 divisors (see below), whose sum is σ = 2254470400. Its totient is φ = 2169348480.

The previous prime is 2211609853. The next prime is 2211609889. The reversal of 2211609859 is 9589061122.

It is a cyclic number.

It is not a de Polignac number, because 2211609859 - 2⁷ = 2211609731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211609853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6336817 + ... + 6337165.

It is an arithmetic number, because the mean of its divisors is an integer number (140904400).

Almost surely, 2^2211609859 is an apocalyptic number.

2211609859 is a deficient number, since it is larger than the sum of its proper divisors (42860541).

2211609859 is a wasteful number, since it uses less digits than its factorization.

2211609859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 2211609859 is about 47027.7562615951. The cubic root of 2211609859 is about 1302.8752649606.

The spelling of 2211609859 in words is "two billion, two hundred eleven million, six hundred nine thousand, eight hundred fifty-nine".