2159711890 has 16 divisors (see below), whose sum is σ = 4442836032. Its totient is φ = 740472624.

The previous prime is 2159711849. The next prime is 2159711921. The reversal of 2159711890 is 981179512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15426444 + ... + 15426583.

It is an arithmetic number, because the mean of its divisors is an integer number (277677252).

Almost surely, 2^2159711890 is an apocalyptic number.

2159711890 is an abundant number, since it is smaller than the sum of its proper divisors (2283124142).

2159711890 is a wasteful number, since it uses less digits than its factorization.

2159711890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30853041.

The product of its (nonzero) digits is 45360, while the sum is 43.

The square root of 2159711890 is about 46472.7004810351. The cubic root of 2159711890 is about 1292.6033379285.

The spelling of 2159711890 in words is "two billion, one hundred fifty-nine million, seven hundred eleven thousand, eight hundred ninety".