27887214065 has 16 divisors (see below), whose sum is σ = 33876229968. Its totient is φ = 22036740096.

The previous prime is 27887214007. The next prime is 27887214151. The reversal of 27887214065 is 56041278872.

It can be written as a sum of positive squares in 8 ways, for example, as 2174450161 + 25712763904 = 46631^2 + 160352^2 .

It is a cyclic number.

It is not a de Polignac number, because 27887214065 - 2²⁴ = 27870436849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81317 + ... + 249773.

It is an arithmetic number, because the mean of its divisors is an integer number (2117264373).

Almost surely, 2^27887214065 is an apocalyptic number.

It is an amenable number.

27887214065 is a deficient number, since it is larger than the sum of its proper divisors (5989015903).

27887214065 is a wasteful number, since it uses less digits than its factorization.

27887214065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168868.

The product of its (nonzero) digits is 1505280, while the sum is 50.

The spelling of 27887214065 in words is "twenty-seven billion, eight hundred eighty-seven million, two hundred fourteen thousand, sixty-five".