27726672009 has 8 divisors (see below), whose sum is σ = 37160445472. Its totient is φ = 18388673280.

The previous prime is 27726672007. The next prime is 27726672047. The reversal of 27726672009 is 90027662772.

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

It is not a de Polignac number, because 27726672009 - 2¹ = 27726672007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27726672007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23943007 + ... + 23944164.

It is an arithmetic number, because the mean of its divisors is an integer number (4645055684).

Almost surely, 2^27726672009 is an apocalyptic number.

It is an amenable number.

27726672009 is a deficient number, since it is larger than the sum of its proper divisors (9433773463).

27726672009 is a wasteful number, since it uses less digits than its factorization.

27726672009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47887367.

The product of its (nonzero) digits is 889056, while the sum is 48.

The spelling of 27726672009 in words is "twenty-seven billion, seven hundred twenty-six million, six hundred seventy-two thousand, nine".