27755408805 has 16 divisors (see below), whose sum is σ = 44420102784. Its totient is φ = 14799068480.

The previous prime is 27755408803. The next prime is 27755408833. The reversal of 27755408805 is 50880455772.

It is not a de Polignac number, because 27755408805 - 2¹ = 27755408803 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27755408801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177894 + ... + 295223.

It is an arithmetic number, because the mean of its divisors is an integer number (2776256424).

Almost surely, 2^27755408805 is an apocalyptic number.

It is an amenable number.

27755408805 is a deficient number, since it is larger than the sum of its proper divisors (16664693979).

27755408805 is a wasteful number, since it uses less digits than its factorization.

27755408805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477036.

The product of its (nonzero) digits is 3136000, while the sum is 51.

The spelling of 27755408805 in words is "twenty-seven billion, seven hundred fifty-five million, four hundred eight thousand, eight hundred five".