1266886268 has 6 divisors (see below), whose sum is σ = 2217050976. Its totient is φ = 633443132.

The previous prime is 1266886261. The next prime is 1266886273. The reversal of 1266886268 is 8626886621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266886261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158360780 + ... + 158360787.

It is an arithmetic number, because the mean of its divisors is an integer number (369508496).

Almost surely, 2^1266886268 is an apocalyptic number.

It is an amenable number.

1266886268 is a deficient number, since it is larger than the sum of its proper divisors (950164708).

1266886268 is a wasteful number, since it uses less digits than its factorization.

1266886268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316721571 (or 316721569 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 53.

The square root of 1266886268 is about 35593.3458387941. The cubic root of 1266886268 is about 1082.0463795673.

The spelling of 1266886268 in words is "one billion, two hundred sixty-six million, eight hundred eighty-six thousand, two hundred sixty-eight".