27448947809 has 8 divisors (see below), whose sum is σ = 27568717440. Its totient is φ = 27329227200.

The previous prime is 27448947787. The next prime is 27448947833. The reversal of 27448947809 is 90874984472.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 27448947809 - 2⁸ = 27448947553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27448947899) 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, 1523564 + ... + 1541474.

It is an arithmetic number, because the mean of its divisors is an integer number (3446089680).

Almost surely, 2^27448947809 is an apocalyptic number.

It is an amenable number.

27448947809 is a deficient number, since it is larger than the sum of its proper divisors (119769631).

27448947809 is a wasteful number, since it uses less digits than its factorization.

27448947809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24511.

The product of its (nonzero) digits is 32514048, while the sum is 62.

The spelling of 27448947809 in words is "twenty-seven billion, four hundred forty-eight million, nine hundred forty-seven thousand, eight hundred nine".