19472831219 has 2 divisors, whose sum is σ = 19472831220. Its totient is φ = 19472831218.

The previous prime is 19472831167. The next prime is 19472831227. The reversal of 19472831219 is 91213827491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19472831219 - 2⁸ = 19472830963 is a prime.

It is a super-2 number, since 2×19472831219² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (19472831419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9736415609 + 9736415610.

It is an arithmetic number, because the mean of its divisors is an integer number (9736415610).

Almost surely, 2^19472831219 is an apocalyptic number.

19472831219 is a deficient number, since it is larger than the sum of its proper divisors (1).

19472831219 is an equidigital number, since it uses as much as digits as its factorization.

19472831219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 47.

The spelling of 19472831219 in words is "nineteen billion, four hundred seventy-two million, eight hundred thirty-one thousand, two hundred nineteen".