27727505023 has 4 divisors (see below), whose sum is σ = 27727931448. Its totient is φ = 27727078600.

The previous prime is 27727504991. The next prime is 27727505033. The reversal of 27727505023 is 32050572772.

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 27727505023 - 2⁵ = 27727504991 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27727505033) 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, 93136 + ... + 253237.

It is an arithmetic number, because the mean of its divisors is an integer number (6931982862).

Almost surely, 2^27727505023 is an apocalyptic number.

27727505023 is a deficient number, since it is larger than the sum of its proper divisors (426425).

27727505023 is an equidigital number, since it uses as much as digits as its factorization.

27727505023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426424.

The product of its (nonzero) digits is 205800, while the sum is 40.

The spelling of 27727505023 in words is "twenty-seven billion, seven hundred twenty-seven million, five hundred five thousand, twenty-three".