27750805063 has 4 divisors (see below), whose sum is σ = 27761244280. Its totient is φ = 27740365848.

The previous prime is 27750805057. The next prime is 27750805087. The reversal of 27750805063 is 36050805772.

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

It is a cyclic number.

It is not a de Polignac number, because 27750805063 - 2⁵ = 27750805031 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 (27750805003) 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, 5215620 + ... + 5220937.

It is an arithmetic number, because the mean of its divisors is an integer number (6940311070).

Almost surely, 2^27750805063 is an apocalyptic number.

27750805063 is a deficient number, since it is larger than the sum of its proper divisors (10439217).

27750805063 is a wasteful number, since it uses less digits than its factorization.

27750805063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10439216.

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 27750805063 in words is "twenty-seven billion, seven hundred fifty million, eight hundred five thousand, sixty-three".