12647419055042 has 16 divisors (see below), whose sum is σ = 19328509905912. Its totient is φ = 6205690579200.

The previous prime is 12647419055003. The next prime is 12647419055059. The reversal of 12647419055042 is 24055091474621.

It is a Cunningham number, because it is equal to 3556321²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 12592072257961 + 55346797081 = 3548531^2 + 235259^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277016933 + ... + 277062584.

Almost surely, 2^{12647419055042} is an apocalyptic number.

12647419055042 is a deficient number, since it is larger than the sum of its proper divisors (6681090850870).

12647419055042 is a wasteful number, since it uses less digits than its factorization.

12647419055042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554079733.

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 12647419055042 in words is "twelve trillion, six hundred forty-seven billion, four hundred nineteen million, fifty-five thousand, forty-two".