27053873209 has 6 divisors (see below), whose sum is σ = 29736902090. Its totient is φ = 24594430080.

The previous prime is 27053873201. The next prime is 27053873221. The reversal of 27053873209 is 90237835072.

It can be written as a sum of positive squares in only one way, i.e., 19663891984 + 7389981225 = 140228^2 + 85965^2 .

It is not a de Polignac number, because 27053873209 - 2³ = 27053873201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27053873201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111792744 + ... + 111792985.

Almost surely, 2^27053873209 is an apocalyptic number.

It is an amenable number.

27053873209 is a deficient number, since it is larger than the sum of its proper divisors (2683028881).

27053873209 is a wasteful number, since it uses less digits than its factorization.

27053873209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223585751 (or 223585740 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 27053873209 in words is "twenty-seven billion, fifty-three million, eight hundred seventy-three thousand, two hundred nine".