27500233472809 has 2 divisors, whose sum is σ = 27500233472810. Its totient is φ = 27500233472808.

The previous prime is 27500233472801. The next prime is 27500233472827. The reversal of 27500233472809 is 90827433200572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17376000413209 + 10124233059600 = 4168453^2 + 3181860^2 .

It is a cyclic number.

It is not a de Polignac number, because 27500233472809 - 2³ = 27500233472801 is a prime.

It is not a weakly prime, because it can be changed into another prime (27500233472801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13750116736404 + 13750116736405.

It is an arithmetic number, because the mean of its divisors is an integer number (13750116736405).

Almost surely, 2^{27500233472809} is an apocalyptic number.

It is an amenable number.

27500233472809 is a deficient number, since it is larger than the sum of its proper divisors (1).

27500233472809 is an equidigital number, since it uses as much as digits as its factorization.

27500233472809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 52.

The spelling of 27500233472809 in words is "twenty-seven trillion, five hundred billion, two hundred thirty-three million, four hundred seventy-two thousand, eight hundred nine".