27823331849 has 2 divisors, whose sum is σ = 27823331850. Its totient is φ = 27823331848.

The previous prime is 27823331827. The next prime is 27823331869. The reversal of 27823331849 is 94813332872.

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., 22740640000 + 5082691849 = 150800^2 + 71293^2 .

It is a cyclic number.

It is not a de Polignac number, because 27823331849 - 2⁸ = 27823331593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27823331797 and 27823331806.

It is not a weakly prime, because it can be changed into another prime (27823331869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13911665924 + 13911665925.

It is an arithmetic number, because the mean of its divisors is an integer number (13911665925).

Almost surely, 2^27823331849 is an apocalyptic number.

It is an amenable number.

27823331849 is a deficient number, since it is larger than the sum of its proper divisors (1).

27823331849 is an equidigital number, since it uses as much as digits as its factorization.

27823331849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 50.

The spelling of 27823331849 in words is "twenty-seven billion, eight hundred twenty-three million, three hundred thirty-one thousand, eight hundred forty-nine".