2168975894 has 16 divisors (see below), whose sum is σ = 3425615280. Its totient is φ = 1027134720.

The previous prime is 2168975843. The next prime is 2168975953. The reversal of 2168975894 is 4985798612.

It is a Curzon number.

It is a congruent number.

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, 243422 + ... + 252174.

It is an arithmetic number, because the mean of its divisors is an integer number (214100955).

Almost surely, 2^2168975894 is an apocalyptic number.

2168975894 is a deficient number, since it is larger than the sum of its proper divisors (1256639386).

2168975894 is a wasteful number, since it uses less digits than its factorization.

2168975894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15295.

The product of its digits is 8709120, while the sum is 59.

The square root of 2168975894 is about 46572.2652874004. The cubic root of 2168975894 is about 1294.4488929740.

The spelling of 2168975894 in words is "two billion, one hundred sixty-eight million, nine hundred seventy-five thousand, eight hundred ninety-four".