27806388118 has 8 divisors (see below), whose sum is σ = 41715793512. Its totient is φ = 13901123616.

The previous prime is 27806388107. The next prime is 27806388139. The reversal of 27806388118 is 81188360872.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018380 + ... + 1045327.

It is an arithmetic number, because the mean of its divisors is an integer number (5214474189).

Almost surely, 2^27806388118 is an apocalyptic number.

27806388118 is a deficient number, since it is larger than the sum of its proper divisors (13909405394).

27806388118 is a wasteful number, since it uses less digits than its factorization.

27806388118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2070446.

The product of its (nonzero) digits is 1032192, while the sum is 52.

The spelling of 27806388118 in words is "twenty-seven billion, eight hundred six million, three hundred eighty-eight thousand, one hundred eighteen".