1266925912 has 64 divisors (see below), whose sum is σ = 2796171840. Its totient is φ = 526848000.

The previous prime is 1266925889. The next prime is 1266925973. The reversal of 1266925912 is 2195296621.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 450912 + ... + 453712.

It is an arithmetic number, because the mean of its divisors is an integer number (43690185).

Almost surely, 2^1266925912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1266925912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1398085920).

1266925912 is an abundant number, since it is smaller than the sum of its proper divisors (1529245928).

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

1266925912 is a wasteful number, since it uses less digits than its factorization.

1266925912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052 (or 3048 counting only the distinct ones).

The product of its digits is 116640, while the sum is 43.

The square root of 1266925912 is about 35593.9027362834. The cubic root of 1266925912 is about 1082.0576660840.

The spelling of 1266925912 in words is "one billion, two hundred sixty-six million, nine hundred twenty-five thousand, nine hundred twelve".