27281355028 has 12 divisors (see below), whose sum is σ = 47746382292. Its totient is φ = 13639531520.

The previous prime is 27281354959. The next prime is 27281355043. The reversal of 27281355028 is 82055318272.

It can be written as a sum of positive squares in 2 ways, for example, as 3045715344 + 24235639684 = 55188^2 + 155678^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231775 + ... + 329062.

It is an arithmetic number, because the mean of its divisors is an integer number (3978865191).

Almost surely, 2^27281355028 is an apocalyptic number.

It is an amenable number.

27281355028 is a deficient number, since it is larger than the sum of its proper divisors (20465027264).

27281355028 is a wasteful number, since it uses less digits than its factorization.

27281355028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573002 (or 573000 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 43.

The spelling of 27281355028 in words is "twenty-seven billion, two hundred eighty-one million, three hundred fifty-five thousand, twenty-eight".