2168639082212 has 24 divisors (see below), whose sum is σ = 4018479617880. Its totient is φ = 1020505825280.

The previous prime is 2168639082209. The next prime is 2168639082221. The reversal of 2168639082212 is 2122809368612.

It can be written as a sum of positive squares in 4 ways, for example, as 991904451136 + 1176734631076 = 995944^2 + 1084774^2 .

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, 1930964 + ... + 2840052.

It is an arithmetic number, because the mean of its divisors is an integer number (167436650745).

Almost surely, 2^{2168639082212} is an apocalyptic number.

It is an amenable number.

2168639082212 is a deficient number, since it is larger than the sum of its proper divisors (1849840535668).

2168639082212 is a wasteful number, since it uses less digits than its factorization.

2168639082212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944191 (or 944189 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 50.

The spelling of 2168639082212 in words is "two trillion, one hundred sixty-eight billion, six hundred thirty-nine million, eighty-two thousand, two hundred twelve".