27726705212 has 6 divisors (see below), whose sum is σ = 48521734128. Its totient is φ = 13863352604.

The previous prime is 27726705197. The next prime is 27726705217. The reversal of 27726705212 is 21250762772.

It is a self number, because there is not a number n which added to its sum of digits gives 27726705212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27726705217) 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 as a sum of consecutive naturals, namely, 3465838148 + ... + 3465838155.

It is an arithmetic number, because the mean of its divisors is an integer number (8086955688).

Almost surely, 2^27726705212 is an apocalyptic number.

It is an amenable number.

27726705212 is a deficient number, since it is larger than the sum of its proper divisors (20795028916).

27726705212 is a wasteful number, since it uses less digits than its factorization.

27726705212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6931676307 (or 6931676305 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 41.

The spelling of 27726705212 in words is "twenty-seven billion, seven hundred twenty-six million, seven hundred five thousand, two hundred twelve".