2171761199 has 12 divisors (see below), whose sum is σ = 2294321040. Its totient is φ = 2055447360.

The previous prime is 2171761187. The next prime is 2171761201. The reversal of 2171761199 is 9911671712.

It is not a de Polignac number, because 2171761199 - 2⁴ = 2171761183 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 (2171761129) 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, 473879 + ... + 478439.

It is an arithmetic number, because the mean of its divisors is an integer number (191193420).

Almost surely, 2^2171761199 is an apocalyptic number.

2171761199 is a deficient number, since it is larger than the sum of its proper divisors (122559841).

2171761199 is a wasteful number, since it uses less digits than its factorization.

2171761199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5918 (or 5899 counting only the distinct ones).

The product of its digits is 47628, while the sum is 44.

The square root of 2171761199 is about 46602.1587375521. The cubic root of 2171761199 is about 1295.0027477171.

The spelling of 2171761199 in words is "two billion, one hundred seventy-one million, seven hundred sixty-one thousand, one hundred ninety-nine".