27958873219 has 2 divisors, whose sum is σ = 27958873220. Its totient is φ = 27958873218.

The previous prime is 27958873207. The next prime is 27958873259. The reversal of 27958873219 is 91237885972.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27958873219 - 2¹⁵ = 27958840451 is a prime.

It is a super-2 number, since 2×27958873219² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27958873259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13979436609 + 13979436610.

It is an arithmetic number, because the mean of its divisors is an integer number (13979436610).

Almost surely, 2^27958873219 is an apocalyptic number.

27958873219 is a deficient number, since it is larger than the sum of its proper divisors (1).

27958873219 is an equidigital number, since it uses as much as digits as its factorization.

27958873219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15240960, while the sum is 61.

The spelling of 27958873219 in words is "twenty-seven billion, nine hundred fifty-eight million, eight hundred seventy-three thousand, two hundred nineteen".