1266868834 has 48 divisors (see below), whose sum is σ = 2417912640. Its totient is φ = 492276960.

The previous prime is 1266868787. The next prime is 1266868853. The reversal of 1266868834 is 4388686621.

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 23 ways as a sum of consecutive naturals, for example, 471904 + ... + 474580.

It is an arithmetic number, because the mean of its divisors is an integer number (50373180).

Almost surely, 2^1266868834 is an apocalyptic number.

1266868834 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1266868834 is a deficient number, since it is larger than the sum of its proper divisors (1151043806).

1266868834 is a wasteful number, since it uses less digits than its factorization.

1266868834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3143 (or 3136 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 52.

The square root of 1266868834 is about 35593.1009326246. The cubic root of 1266868834 is about 1082.0414160901.

The spelling of 1266868834 in words is "one billion, two hundred sixty-six million, eight hundred sixty-eight thousand, eight hundred thirty-four".