27266365756 has 72 divisors (see below), whose sum is σ = 59071375440. Its totient is φ = 10942106112.

The previous prime is 27266365723. The next prime is 27266365771. The reversal of 27266365756 is 65756366272.

It is a junction number, because it is equal to n+sod(n) for n = 27266365697 and 27266365706.

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 23 ways as a sum of consecutive naturals, for example, 635635 + ... + 677173.

It is an arithmetic number, because the mean of its divisors is an integer number (820435770).

Almost surely, 2^27266365756 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 27266365756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29535687720).

27266365756 is an abundant number, since it is smaller than the sum of its proper divisors (31805009684).

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

27266365756 is a wasteful number, since it uses less digits than its factorization.

27266365756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41771 (or 41762 counting only the distinct ones).

The product of its digits is 19051200, while the sum is 55.

The spelling of 27266365756 in words is "twenty-seven billion, two hundred sixty-six million, three hundred sixty-five thousand, seven hundred fifty-six".