27545069808 has 120 divisors (see below), whose sum is σ = 81715091328. Its totient is φ = 8631791616.

The previous prime is 27545069777. The next prime is 27545069819. The reversal of 27545069808 is 80896054572.

27545069808 is a `hidden beast` number, since 2 + 7 + 54 + 506 + 9 + 80 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2327041 + ... + 2338847.

Almost surely, 2^27545069808 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 27545069808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40857545664).

27545069808 is an abundant number, since it is smaller than the sum of its proper divisors (54170021520).

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

27545069808 is a wasteful number, since it uses less digits than its factorization.

27545069808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12791 (or 12782 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 27545069808 in words is "twenty-seven billion, five hundred forty-five million, sixty-nine thousand, eight hundred eight".