19382927873 has 2 divisors, whose sum is σ = 19382927874. Its totient is φ = 19382927872.

The previous prime is 19382927821. The next prime is 19382927917. The reversal of 19382927873 is 37872928391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18113929744 + 1268998129 = 134588^2 + 35623^2 .

It is an emirp because it is prime and its reverse (37872928391) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19382927873 is a prime.

It is not a weakly prime, because it can be changed into another prime (19382927803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9691463936 + 9691463937.

It is an arithmetic number, because the mean of its divisors is an integer number (9691463937).

Almost surely, 2^19382927873 is an apocalyptic number.

It is an amenable number.

19382927873 is a deficient number, since it is larger than the sum of its proper divisors (1).

19382927873 is an equidigital number, since it uses as much as digits as its factorization.

19382927873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9144576, while the sum is 59.

The spelling of 19382927873 in words is "nineteen billion, three hundred eighty-two million, nine hundred twenty-seven thousand, eight hundred seventy-three".