19408716683 has 2 divisors, whose sum is σ = 19408716684. Its totient is φ = 19408716682.

The previous prime is 19408716667. The next prime is 19408716721. The reversal of 19408716683 is 38661780491.

It is a weak prime.

It is an emirp because it is prime and its reverse (38661780491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19408716683 - 2⁴ = 19408716667 is a prime.

It is not a weakly prime, because it can be changed into another prime (19408716983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9704358341 + 9704358342.

It is an arithmetic number, because the mean of its divisors is an integer number (9704358342).

Almost surely, 2^19408716683 is an apocalyptic number.

19408716683 is a deficient number, since it is larger than the sum of its proper divisors (1).

19408716683 is an equidigital number, since it uses as much as digits as its factorization.

19408716683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 19408716683 in words is "nineteen billion, four hundred eight million, seven hundred sixteen thousand, six hundred eighty-three".