27147987074785 has 16 divisors (see below), whose sum is σ = 32773078711296. Its totient is φ = 21588063504448.

The previous prime is 27147987074749. The next prime is 27147987074797. The reversal of 27147987074785 is 58747078974172.

It is not a de Polignac number, because 27147987074785 - 2¹¹ = 27147987072737 is a prime.

It is a Duffinian number.

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, 87137907 + ... + 87448903.

It is an arithmetic number, because the mean of its divisors is an integer number (2048317419456).

Almost surely, 2^{27147987074785} is an apocalyptic number.

It is an amenable number.

27147987074785 is a deficient number, since it is larger than the sum of its proper divisors (5625091636511).

27147987074785 is a wasteful number, since it uses less digits than its factorization.

27147987074785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415712.

The product of its (nonzero) digits is 1548933120, while the sum is 76.

The spelling of 27147987074785 in words is "twenty-seven trillion, one hundred forty-seven billion, nine hundred eighty-seven million, seventy-four thousand, seven hundred eighty-five".