12886641735444 has 18 divisors (see below), whose sum is σ = 32574566609130. Its totient is φ = 4295547245136.

The previous prime is 12886641735437. The next prime is 12886641735493. The reversal of 12886641735444 is 44453714668821.

12886641735444 is a `hidden beast` number, since 1 + 2 + 8 + 86 + 6 + 4 + 1 + 7 + 3 + 544 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12823288845444 + 63352890000 = 3580962^2 + 251700^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178981135179 + ... + 178981135250.

Almost surely, 2^{12886641735444} is an apocalyptic number.

It is an amenable number.

12886641735444 is an abundant number, since it is smaller than the sum of its proper divisors (19687924873686).

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

12886641735444 is a wasteful number, since it uses less digits than its factorization.

12886641735444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357962270439 (or 357962270434 counting only the distinct ones).

The product of its digits is 123863040, while the sum is 63.

The spelling of 12886641735444 in words is "twelve trillion, eight hundred eighty-six billion, six hundred forty-one million, seven hundred thirty-five thousand, four hundred forty-four".