2105175868 has 12 divisors (see below), whose sum is σ = 3722038432. Its totient is φ = 1041736320.

The previous prime is 2105175857. The next prime is 2105175881. The reversal of 2105175868 is 8685715012.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2712468 + ... + 2713243.

Almost surely, 2^2105175868 is an apocalyptic number.

It is an amenable number.

2105175868 is a deficient number, since it is larger than the sum of its proper divisors (1616862564).

2105175868 is a wasteful number, since it uses less digits than its factorization.

2105175868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5425812 (or 5425810 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 43.

The square root of 2105175868 is about 45882.1955446772. The cubic root of 2105175868 is about 1281.6303825644.

The spelling of 2105175868 in words is "two billion, one hundred five million, one hundred seventy-five thousand, eight hundred sixty-eight".