2168719369 has 16 divisors (see below), whose sum is σ = 2255832000. Its totient is φ = 2083233600.

The previous prime is 2168719361. The next prime is 2168719379. The reversal of 2168719369 is 9639178612.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2168719369 - 2³ = 2168719361 is a prime.

It is a super-2 number, since 2×2168719369² = 9406687402951516322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2168719361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1864182 + ... + 1865344.

It is an arithmetic number, because the mean of its divisors is an integer number (140989500).

Almost surely, 2^2168719369 is an apocalyptic number.

It is an amenable number.

2168719369 is a deficient number, since it is larger than the sum of its proper divisors (87112631).

2168719369 is a wasteful number, since it uses less digits than its factorization.

2168719369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800.

The product of its digits is 979776, while the sum is 52.

The square root of 2168719369 is about 46569.5111526844. The cubic root of 2168719369 is about 1294.3978594279.

The spelling of 2168719369 in words is "two billion, one hundred sixty-eight million, seven hundred nineteen thousand, three hundred sixty-nine".