1260766447 has 4 divisors (see below), whose sum is σ = 1260838656. Its totient is φ = 1260694240.

The previous prime is 1260766439. The next prime is 1260766469. The reversal of 1260766447 is 7446670621.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1260766447 - 2³ = 1260766439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260766847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8247 + ... + 50887.

It is an arithmetic number, because the mean of its divisors is an integer number (315209664).

Almost surely, 2^1260766447 is an apocalyptic number.

1260766447 is a deficient number, since it is larger than the sum of its proper divisors (72209).

1260766447 is an equidigital number, since it uses as much as digits as its factorization.

1260766447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72208.

The product of its (nonzero) digits is 338688, while the sum is 43.

The square root of 1260766447 is about 35507.2731563549. The cubic root of 1260766447 is about 1080.3012554090.

The spelling of 1260766447 in words is "one billion, two hundred sixty million, seven hundred sixty-six thousand, four hundred forty-seven".