27646857754141 has 4 divisors (see below), whose sum is σ = 27666204751900. Its totient is φ = 27627510756384.

The previous prime is 27646857754099. The next prime is 27646857754237. The reversal of 27646857754141 is 14145775864672.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13504963508100 + 14141894246041 = 3674910^2 + 3760571^2 .

It is a cyclic number.

It is not a de Polignac number, because 27646857754141 - 2²⁷ = 27646723536413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27646857754741) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9673496736 + ... + 9673499593.

It is an arithmetic number, because the mean of its divisors is an integer number (6916551187975).

Almost surely, 2^{27646857754141} is an apocalyptic number.

It is an amenable number.

27646857754141 is a deficient number, since it is larger than the sum of its proper divisors (19346997759).

27646857754141 is a wasteful number, since it uses less digits than its factorization.

27646857754141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19346997758.

The product of its digits is 316108800, while the sum is 67.

The spelling of 27646857754141 in words is "twenty-seven trillion, six hundred forty-six billion, eight hundred fifty-seven million, seven hundred fifty-four thousand, one hundred forty-one".