2117159709 has 12 divisors (see below), whose sum is σ = 3283758144. Its totient is φ = 1209805464.

The previous prime is 2117159699. The next prime is 2117159713. The reversal of 2117159709 is 9079517112.

It is not a de Polignac number, because 2117159709 - 2¹¹ = 2117157661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2117159809) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 7201077 + ... + 7201370.

It is an arithmetic number, because the mean of its divisors is an integer number (273646512).

Almost surely, 2^2117159709 is an apocalyptic number.

It is an amenable number.

2117159709 is a deficient number, since it is larger than the sum of its proper divisors (1166598435).

2117159709 is a wasteful number, since it uses less digits than its factorization.

2117159709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14402464 (or 14402457 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 42.

The square root of 2117159709 is about 46012.6038059139. The cubic root of 2117159709 is about 1284.0577019856.

The spelling of 2117159709 in words is "two billion, one hundred seventeen million, one hundred fifty-nine thousand, seven hundred nine".