27446758656 has 144 divisors (see below), whose sum is σ = 75418890624. Its totient is φ = 8854659072.

The previous prime is 27446758639. The next prime is 27446758687. The reversal of 27446758656 is 65685764472.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 27446758656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5595501 + ... + 5600403.

It is an arithmetic number, because the mean of its divisors is an integer number (523742296).

Almost surely, 2^27446758656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27446758656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37709445312).

27446758656 is an abundant number, since it is smaller than the sum of its proper divisors (47972131968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27446758656 is a wasteful number, since it uses less digits than its factorization.

27446758656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5156 (or 5142 counting only the distinct ones).

The product of its digits is 67737600, while the sum is 60.

The spelling of 27446758656 in words is "twenty-seven billion, four hundred forty-six million, seven hundred fifty-eight thousand, six hundred fifty-six".