27265229856 has 168 divisors, whose sum is σ = 80775738540. Its totient is φ = 9055120896.

The previous prime is 27265229837. The next prime is 27265229899. The reversal of 27265229856 is 65892256272.

27265229856 is a `hidden beast` number, since 2 + 7 + 26 + 522 + 98 + 5 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 25445354256 + 1819875600 = 159516^2 + 42660^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 6833110 + ... + 6837098.

Almost surely, 2^27265229856 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 27265229856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40387869270).

27265229856 is an abundant number, since it is smaller than the sum of its proper divisors (53510508684).

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

27265229856 is an equidigital number, since it uses as much as digits as its factorization.

27265229856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4310 (or 4287 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 27265229856 in words is "twenty-seven billion, two hundred sixty-five million, two hundred twenty-nine thousand, eight hundred fifty-six".