1296271716 has 48 divisors (see below), whose sum is σ = 3081469440. Its totient is φ = 424005120.

The previous prime is 1296271699. The next prime is 1296271741. The reversal of 1296271716 is 6171726921.

It is a happy 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, 348780 + ... + 352476.

It is an arithmetic number, because the mean of its divisors is an integer number (64197280).

Almost surely, 2^1296271716 is an apocalyptic number.

It is an amenable number.

1296271716 is an abundant number, since it is smaller than the sum of its proper divisors (1785197724).

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

1296271716 is a wasteful number, since it uses less digits than its factorization.

1296271716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4244 (or 4242 counting only the distinct ones).

The product of its digits is 63504, while the sum is 42.

The square root of 1296271716 is about 36003.7736355510. The cubic root of 1296271716 is about 1090.3485449335.

The spelling of 1296271716 in words is "one billion, two hundred ninety-six million, two hundred seventy-one thousand, seven hundred sixteen".