1268118276 has 12 divisors (see below), whose sum is σ = 2958942672. Its totient is φ = 422706088.

The previous prime is 1268118251. The next prime is 1268118277. The reversal of 1268118276 is 6728118621.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1268118277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52838250 + ... + 52838273.

It is an arithmetic number, because the mean of its divisors is an integer number (246578556).

Almost surely, 2^1268118276 is an apocalyptic number.

It is an amenable number.

1268118276 is an abundant number, since it is smaller than the sum of its proper divisors (1690824396).

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

1268118276 is a wasteful number, since it uses less digits than its factorization.

1268118276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105676530 (or 105676528 counting only the distinct ones).

The product of its digits is 64512, while the sum is 42.

The square root of 1268118276 is about 35610.6483513008. The cubic root of 1268118276 is about 1082.3970182245.

The spelling of 1268118276 in words is "one billion, two hundred sixty-eight million, one hundred eighteen thousand, two hundred seventy-six".