1312678744 has 16 divisors (see below), whose sum is σ = 2650601520. Its totient is φ = 605851680.

The previous prime is 1312678739. The next prime is 1312678751. The reversal of 1312678744 is 4478762131.

It is a self number, because there is not a number n which added to its sum of digits gives 1312678744.

It is a congruent number.

It is an unprimeable number.

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, 6310852 + ... + 6311059.

It is an arithmetic number, because the mean of its divisors is an integer number (165662595).

Almost surely, 2^1312678744 is an apocalyptic number.

It is an amenable number.

1312678744 is an abundant number, since it is smaller than the sum of its proper divisors (1337922776).

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

1312678744 is a wasteful number, since it uses less digits than its factorization.

1312678744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12621930 (or 12621926 counting only the distinct ones).

The product of its digits is 225792, while the sum is 43.

The square root of 1312678744 is about 36230.9086830568. The cubic root of 1312678744 is about 1094.9294851139.

The spelling of 1312678744 in words is "one billion, three hundred twelve million, six hundred seventy-eight thousand, seven hundred forty-four".