27717245419 has 2 divisors, whose sum is σ = 27717245420. Its totient is φ = 27717245418.

The previous prime is 27717245411. The next prime is 27717245431. The reversal of 27717245419 is 91454271772.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27717245419 - 2³ = 27717245411 is a prime.

It is a super-2 number, since 2×27717245419² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27717245411) 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, 13858622709 + 13858622710.

It is an arithmetic number, because the mean of its divisors is an integer number (13858622710).

Almost surely, 2^27717245419 is an apocalyptic number.

27717245419 is a deficient number, since it is larger than the sum of its proper divisors (1).

27717245419 is an equidigital number, since it uses as much as digits as its factorization.

27717245419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 987840, while the sum is 49.

The spelling of 27717245419 in words is "twenty-seven billion, seven hundred seventeen million, two hundred forty-five thousand, four hundred nineteen".