27803873505 has 16 divisors (see below), whose sum is σ = 45215481024. Its totient is φ = 14585638080.

The previous prime is 27803873501. The next prime is 27803873509. The reversal of 27803873505 is 50537830872.

It is an interprime number because it is at equal distance from previous prime (27803873501) and next prime (27803873509).

It is not a de Polignac number, because 27803873505 - 2² = 27803873501 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27803873501) 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 15 ways as a sum of consecutive naturals, for example, 15192459 + ... + 15194288.

It is an arithmetic number, because the mean of its divisors is an integer number (2825967564).

Almost surely, 2^27803873505 is an apocalyptic number.

It is an amenable number.

27803873505 is a deficient number, since it is larger than the sum of its proper divisors (17411607519).

27803873505 is a wasteful number, since it uses less digits than its factorization.

27803873505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30386816.

The product of its (nonzero) digits is 1411200, while the sum is 48.

The spelling of 27803873505 in words is "twenty-seven billion, eight hundred three million, eight hundred seventy-three thousand, five hundred five".