2168636192 has 48 divisors (see below), whose sum is σ = 4357757880. Its totient is φ = 1061978112.

The previous prime is 2168636177. The next prime is 2168636207. The reversal of 2168636192 is 2916368612.

It is an interprime number because it is at equal distance from previous prime (2168636177) and next prime (2168636207).

It can be written as a sum of positive squares in 4 ways, for example, as 1754269456 + 414366736 = 41884^2 + 20356^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1880288 + ... + 1881440.

Almost surely, 2^2168636192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2168636192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2178878940).

2168636192 is an abundant number, since it is smaller than the sum of its proper divisors (2189121688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2168636192 is a wasteful number, since it uses less digits than its factorization.

2168636192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325 (or 2317 counting only the distinct ones).

The product of its digits is 186624, while the sum is 44.

The square root of 2168636192 is about 46568.6181027524. The cubic root of 2168636192 is about 1294.3813111815.

The spelling of 2168636192 in words is "two billion, one hundred sixty-eight million, six hundred thirty-six thousand, one hundred ninety-two".