27784425419 has 2 divisors, whose sum is σ = 27784425420. Its totient is φ = 27784425418.

The previous prime is 27784425407. The next prime is 27784425437. The reversal of 27784425419 is 91452448772.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27784425419 - 2³² = 23489458123 is a prime.

It is a super-2 number, since 2×27784425419² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27784485419) 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, 13892212709 + 13892212710.

It is an arithmetic number, because the mean of its divisors is an integer number (13892212710).

Almost surely, 2^27784425419 is an apocalyptic number.

27784425419 is a deficient number, since it is larger than the sum of its proper divisors (1).

27784425419 is an equidigital number, since it uses as much as digits as its factorization.

27784425419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4515840, while the sum is 53.

The spelling of 27784425419 in words is "twenty-seven billion, seven hundred eighty-four million, four hundred twenty-five thousand, four hundred nineteen".