19692238127 has 2 divisors, whose sum is σ = 19692238128. Its totient is φ = 19692238126.

The previous prime is 19692238079. The next prime is 19692238171. The reversal of 19692238127 is 72183229691.

It is a strong prime.

It is an emirp because it is prime and its reverse (72183229691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19692238127 - 2⁶ = 19692238063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19692238327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9846119063 + 9846119064.

It is an arithmetic number, because the mean of its divisors is an integer number (9846119064).

Almost surely, 2^19692238127 is an apocalyptic number.

19692238127 is a deficient number, since it is larger than the sum of its proper divisors (1).

19692238127 is an equidigital number, since it uses as much as digits as its factorization.

19692238127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 50.

The spelling of 19692238127 in words is "nineteen billion, six hundred ninety-two million, two hundred thirty-eight thousand, one hundred twenty-seven".