27819339473 has 2 divisors, whose sum is σ = 27819339474. Its totient is φ = 27819339472.

The previous prime is 27819339463. The next prime is 27819339481. The reversal of 27819339473 is 37493391872.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27787889809 + 31449664 = 166697^2 + 5608^2 .

It is a cyclic number.

It is not a de Polignac number, because 27819339473 - 2⁶ = 27819339409 is a prime.

It is not a weakly prime, because it can be changed into another prime (27819339413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13909669736 + 13909669737.

It is an arithmetic number, because the mean of its divisors is an integer number (13909669737).

Almost surely, 2^27819339473 is an apocalyptic number.

It is an amenable number.

27819339473 is a deficient number, since it is larger than the sum of its proper divisors (1).

27819339473 is an equidigital number, since it uses as much as digits as its factorization.

27819339473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6858432, while the sum is 56.

The spelling of 27819339473 in words is "twenty-seven billion, eight hundred nineteen million, three hundred thirty-nine thousand, four hundred seventy-three".