27800209083 has 4 divisors (see below), whose sum is σ = 37066945448. Its totient is φ = 18533472720.

The previous prime is 27800209079. The next prime is 27800209093. The reversal of 27800209083 is 38090200872.

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

It is not a de Polignac number, because 27800209083 - 2² = 27800209079 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27800209093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4633368178 + ... + 4633368183.

It is an arithmetic number, because the mean of its divisors is an integer number (9266736362).

Almost surely, 2^27800209083 is an apocalyptic number.

27800209083 is a deficient number, since it is larger than the sum of its proper divisors (9266736365).

27800209083 is an equidigital number, since it uses as much as digits as its factorization.

27800209083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9266736364.

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 27800209083 in words is "twenty-seven billion, eight hundred million, two hundred nine thousand, eighty-three".