27489823385 has 16 divisors (see below), whose sum is σ = 33067906560. Its totient is φ = 21938501760.

The previous prime is 27489823351. The next prime is 27489823397. The reversal of 27489823385 is 58332898472.

It is not a de Polignac number, because 27489823385 - 2⁶ = 27489823321 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7291781 + ... + 7295549.

It is an arithmetic number, because the mean of its divisors is an integer number (2066744160).

Almost surely, 2^27489823385 is an apocalyptic number.

It is an amenable number.

27489823385 is a deficient number, since it is larger than the sum of its proper divisors (5578083175).

27489823385 is a wasteful number, since it uses less digits than its factorization.

27489823385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6928.

The product of its digits is 23224320, while the sum is 59.

The spelling of 27489823385 in words is "twenty-seven billion, four hundred eighty-nine million, eight hundred twenty-three thousand, three hundred eighty-five".