27219875393 has 2 divisors, whose sum is σ = 27219875394. Its totient is φ = 27219875392.

The previous prime is 27219875387. The next prime is 27219875401. The reversal of 27219875393 is 39357891272.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17117012224 + 10102863169 = 130832^2 + 100513^2 .

It is a cyclic number.

It is not a de Polignac number, because 27219875393 - 2¹⁸ = 27219613249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (27219875383) 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, 13609937696 + 13609937697.

It is an arithmetic number, because the mean of its divisors is an integer number (13609937697).

Almost surely, 2^27219875393 is an apocalyptic number.

It is an amenable number.

27219875393 is a deficient number, since it is larger than the sum of its proper divisors (1).

27219875393 is an equidigital number, since it uses as much as digits as its factorization.

27219875393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5715360, while the sum is 56.

The spelling of 27219875393 in words is "twenty-seven billion, two hundred nineteen million, eight hundred seventy-five thousand, three hundred ninety-three".