1268805168 has 40 divisors (see below), whose sum is σ = 3641942000. Its totient is φ = 422934912.

The previous prime is 1268805157. The next prime is 1268805193. The reversal of 1268805168 is 8615088621.

1268805168 is a `hidden beast` number, since 126 + 8 + 8 + 0 + 516 + 8 = 666.

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, 1468093 + ... + 1468956.

It is an arithmetic number, because the mean of its divisors is an integer number (91048550).

Almost surely, 2^1268805168 is an apocalyptic number.

1268805168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1268805168 is an abundant number, since it is smaller than the sum of its proper divisors (2373136832).

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

1268805168 is a wasteful number, since it uses less digits than its factorization.

1268805168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2937066 (or 2937054 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 1268805168 is about 35620.2915204241. The cubic root of 1268805168 is about 1082.5924142079.

The spelling of 1268805168 in words is "one billion, two hundred sixty-eight million, eight hundred five thousand, one hundred sixty-eight".