2011789717 has 12 divisors (see below), whose sum is σ = 2362971936. Its totient is φ = 1707645240.

The previous prime is 2011789697. The next prime is 2011789721. The reversal of 2011789717 is 7179871102.

It is not a de Polignac number, because 2011789717 - 2²⁷ = 1877571989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011789777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194259 + ... + 204352.

It is an arithmetic number, because the mean of its divisors is an integer number (196914328).

Almost surely, 2^2011789717 is an apocalyptic number.

It is an amenable number.

2011789717 is a deficient number, since it is larger than the sum of its proper divisors (351182219).

2011789717 is a wasteful number, since it uses less digits than its factorization.

2011789717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398728 (or 398721 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 43.

The square root of 2011789717 is about 44852.9789088752. The cubic root of 2011789717 is about 1262.3918865954.

The spelling of 2011789717 in words is "two billion, eleven million, seven hundred eighty-nine thousand, seven hundred seventeen".