27726681806 has 8 divisors (see below), whose sum is σ = 41680241064. Its totient is φ = 13833268120.

The previous prime is 27726681797. The next prime is 27726681841. The reversal of 27726681806 is 60818662772.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15035240 + ... + 15037083.

It is an arithmetic number, because the mean of its divisors is an integer number (5210030133).

Almost surely, 2^27726681806 is an apocalyptic number.

27726681806 is a deficient number, since it is larger than the sum of its proper divisors (13953559258).

27726681806 is a wasteful number, since it uses less digits than its factorization.

27726681806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30072786.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The spelling of 27726681806 in words is "twenty-seven billion, seven hundred twenty-six million, six hundred eighty-one thousand, eight hundred six".