27863731853 has 2 divisors, whose sum is σ = 27863731854. Its totient is φ = 27863731852.

The previous prime is 27863731807. The next prime is 27863731859. The reversal of 27863731853 is 35813736872.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27821572804 + 42159049 = 166798^2 + 6493^2 .

It is a cyclic number.

It is not a de Polignac number, because 27863731853 - 2⁶ = 27863731789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27863731795 and 27863731804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27863731859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13931865926 + 13931865927.

It is an arithmetic number, because the mean of its divisors is an integer number (13931865927).

Almost surely, 2^27863731853 is an apocalyptic number.

It is an amenable number.

27863731853 is a deficient number, since it is larger than the sum of its proper divisors (1).

27863731853 is an equidigital number, since it uses as much as digits as its factorization.

27863731853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5080320, while the sum is 53.

The spelling of 27863731853 in words is "twenty-seven billion, eight hundred sixty-three million, seven hundred thirty-one thousand, eight hundred fifty-three".