19342220819 has 2 divisors, whose sum is σ = 19342220820. Its totient is φ = 19342220818.

The previous prime is 19342220813. The next prime is 19342220869. The reversal of 19342220819 is 91802224391.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19342220819 - 2²⁰ = 19341172243 is a prime.

It is a super-2 number, since 2×19342220819² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19342220813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9671110409 + 9671110410.

It is an arithmetic number, because the mean of its divisors is an integer number (9671110410).

Almost surely, 2^19342220819 is an apocalyptic number.

19342220819 is a deficient number, since it is larger than the sum of its proper divisors (1).

19342220819 is an equidigital number, since it uses as much as digits as its factorization.

19342220819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 19342220819 in words is "nineteen billion, three hundred forty-two million, two hundred twenty thousand, eight hundred nineteen".