27126280768 has 28 divisors (see below), whose sum is σ = 55684879740. Its totient is φ = 13095444992.

The previous prime is 27126280757. The next prime is 27126280781. The reversal of 27126280768 is 86708262172.

It can be written as a sum of positive squares in 2 ways, for example, as 16035663424 + 11090617344 = 126632^2 + 105312^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7305871 + ... + 7309582.

It is an arithmetic number, because the mean of its divisors is an integer number (1988745705).

Almost surely, 2^27126280768 is an apocalyptic number.

It is an amenable number.

27126280768 is an abundant number, since it is smaller than the sum of its proper divisors (28558598972).

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

27126280768 is a wasteful number, since it uses less digits than its factorization.

27126280768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14615494 (or 14615484 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 27126280768 in words is "twenty-seven billion, one hundred twenty-six million, two hundred eighty thousand, seven hundred sixty-eight".