19216787047 has 2 divisors, whose sum is σ = 19216787048. Its totient is φ = 19216787046.

The previous prime is 19216787033. The next prime is 19216787053. The reversal of 19216787047 is 74078761291.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19216787047 - 2¹¹ = 19216784999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19216786985 and 19216787003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19216767047) 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, 9608393523 + 9608393524.

It is an arithmetic number, because the mean of its divisors is an integer number (9608393524).

Almost surely, 2^19216787047 is an apocalyptic number.

19216787047 is a deficient number, since it is larger than the sum of its proper divisors (1).

19216787047 is an equidigital number, since it uses as much as digits as its factorization.

19216787047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1185408, while the sum is 52.

The spelling of 19216787047 in words is "nineteen billion, two hundred sixteen million, seven hundred eighty-seven thousand, forty-seven".