19146857027 has 2 divisors, whose sum is σ = 19146857028. Its totient is φ = 19146857026.

The previous prime is 19146857011. The next prime is 19146857057. The reversal of 19146857027 is 72075864191.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (72075864191) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19146857027 - 2⁴ = 19146857011 is a prime.

It is not a weakly prime, because it can be changed into another prime (19146857057) 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, 9573428513 + 9573428514.

It is an arithmetic number, because the mean of its divisors is an integer number (9573428514).

Almost surely, 2^19146857027 is an apocalyptic number.

19146857027 is a deficient number, since it is larger than the sum of its proper divisors (1).

19146857027 is an equidigital number, since it uses as much as digits as its factorization.

19146857027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846720, while the sum is 50.

The spelling of 19146857027 in words is "nineteen billion, one hundred forty-six million, eight hundred fifty-seven thousand, twenty-seven".