2168471018 has 16 divisors (see below), whose sum is σ = 3837295104. Its totient is φ = 899365680.

The previous prime is 2168470979. The next prime is 2168471033. The reversal of 2168471018 is 8101748612.

It is a happy number.

It is a Curzon number.

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, 2497805 + ... + 2498672.

It is an arithmetic number, because the mean of its divisors is an integer number (239830944).

Almost surely, 2^2168471018 is an apocalyptic number.

2168471018 is a deficient number, since it is larger than the sum of its proper divisors (1668824086).

2168471018 is a wasteful number, since it uses less digits than its factorization.

2168471018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4996517.

The product of its (nonzero) digits is 21504, while the sum is 38.

The square root of 2168471018 is about 46566.8446214686. The cubic root of 2168471018 is about 1294.3484481979.

The spelling of 2168471018 in words is "two billion, one hundred sixty-eight million, four hundred seventy-one thousand, eighteen".