1271682867 has 32 divisors (see below), whose sum is σ = 2088862720. Its totient is φ = 670135680.

The previous prime is 1271682827. The next prime is 1271682869. The reversal of 1271682867 is 7682861721.

It is not a de Polignac number, because 1271682867 - 2⁶ = 1271682803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1271682869) 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 31 ways as a sum of consecutive naturals, for example, 454242 + ... + 457032.

It is an arithmetic number, because the mean of its divisors is an integer number (65276960).

Almost surely, 2^1271682867 is an apocalyptic number.

1271682867 is a deficient number, since it is larger than the sum of its proper divisors (817179853).

1271682867 is a wasteful number, since it uses less digits than its factorization.

1271682867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4483.

The product of its digits is 451584, while the sum is 48.

The square root of 1271682867 is about 35660.6627392145. The cubic root of 1271682867 is about 1083.4102499918.

The spelling of 1271682867 in words is "one billion, two hundred seventy-one million, six hundred eighty-two thousand, eight hundred sixty-seven".