27942789885 has 32 divisors (see below), whose sum is σ = 44878250880. Its totient is φ = 14846312448.

The previous prime is 27942789851. The next prime is 27942789887. The reversal of 27942789885 is 58898724972.

It is not a de Polignac number, because 27942789885 - 2¹⁶ = 27942724349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27942789887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7723597 + ... + 7727213.

It is an arithmetic number, because the mean of its divisors is an integer number (1402445340).

Almost surely, 2^27942789885 is an apocalyptic number.

It is an amenable number.

27942789885 is a deficient number, since it is larger than the sum of its proper divisors (16935460995).

27942789885 is a wasteful number, since it uses less digits than its factorization.

27942789885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5437.

The product of its digits is 162570240, while the sum is 69.

The spelling of 27942789885 in words is "twenty-seven billion, nine hundred forty-two million, seven hundred eighty-nine thousand, eight hundred eighty-five".