1266434853 has 8 divisors (see below), whose sum is σ = 1734217248. Its totient is φ = 821471184.

The previous prime is 1266434837. The next prime is 1266434893. The reversal of 1266434853 is 3584346621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1266434853 - 2⁴ = 1266434837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266434893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5704551 + ... + 5704772.

It is an arithmetic number, because the mean of its divisors is an integer number (216777156).

Almost surely, 2^1266434853 is an apocalyptic number.

It is an amenable number.

1266434853 is a deficient number, since it is larger than the sum of its proper divisors (467782395).

1266434853 is a wasteful number, since it uses less digits than its factorization.

1266434853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11409363.

The product of its digits is 414720, while the sum is 42.

The square root of 1266434853 is about 35587.0039902209. The cubic root of 1266434853 is about 1081.9178465897.

The spelling of 1266434853 in words is "one billion, two hundred sixty-six million, four hundred thirty-four thousand, eight hundred fifty-three".