1312648216642 has 32 divisors (see below), whose sum is σ = 2312102830464. Its totient is φ = 547184246400.

The previous prime is 1312648216619. The next prime is 1312648216651. The reversal of 1312648216642 is 2466128462131.

It is a junction number, because it is equal to n+sod(n) for n = 1312648216592 and 1312648216601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3264453 + ... + 3644440.

It is an arithmetic number, because the mean of its divisors is an integer number (72253213452).

Almost surely, 2^{1312648216642} is an apocalyptic number.

1312648216642 is a deficient number, since it is larger than the sum of its proper divisors (999454613822).

1312648216642 is a wasteful number, since it uses less digits than its factorization.

1312648216642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6909274.

The product of its digits is 663552, while the sum is 46.

The spelling of 1312648216642 in words is "one trillion, three hundred twelve billion, six hundred forty-eight million, two hundred sixteen thousand, six hundred forty-two".