1267268260866 has 16 divisors (see below), whose sum is σ = 2536661042784. Its totient is φ = 422068666784.

The previous prime is 1267268260831. The next prime is 1267268260877. The reversal of 1267268260866 is 6680628627621.

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, 88513956 + ... + 88528271.

It is an arithmetic number, because the mean of its divisors is an integer number (158541315174).

Almost surely, 2^{1267268260866} is an apocalyptic number.

1267268260866 is an abundant number, since it is smaller than the sum of its proper divisors (1269392781918).

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

1267268260866 is a wasteful number, since it uses less digits than its factorization.

1267268260866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177043425.

The product of its (nonzero) digits is 27869184, while the sum is 60.

The spelling of 1267268260866 in words is "one trillion, two hundred sixty-seven billion, two hundred sixty-eight million, two hundred sixty thousand, eight hundred sixty-six".