27777530005 has 16 divisors (see below), whose sum is σ = 34614365184. Its totient is φ = 21376391040.

The previous prime is 27777529993. The next prime is 27777530017. The reversal of 27777530005 is 50003577772.

It is an interprime number because it is at equal distance from previous prime (27777529993) and next prime (27777530017).

It is not a de Polignac number, because 27777530005 - 2⁷ = 27777529877 is a prime.

It is a Duffinian number.

It is a congruent 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, 510672 + ... + 562441.

It is an arithmetic number, because the mean of its divisors is an integer number (2163397824).

Almost surely, 2^27777530005 is an apocalyptic number.

It is an amenable number.

27777530005 is a deficient number, since it is larger than the sum of its proper divisors (6836835179).

27777530005 is a wasteful number, since it uses less digits than its factorization.

27777530005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073316.

The product of its (nonzero) digits is 360150, while the sum is 43.

The spelling of 27777530005 in words is "twenty-seven billion, seven hundred seventy-seven million, five hundred thirty thousand, five".