19226428423 has 2 divisors, whose sum is σ = 19226428424. Its totient is φ = 19226428422.

The previous prime is 19226428367. The next prime is 19226428427. The reversal of 19226428423 is 32482462291.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19226428423 - 2⁹ = 19226427911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19226428423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19226428427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9613214211 + 9613214212.

It is an arithmetic number, because the mean of its divisors is an integer number (9613214212).

Almost surely, 2^19226428423 is an apocalyptic number.

19226428423 is a deficient number, since it is larger than the sum of its proper divisors (1).

19226428423 is an equidigital number, since it uses as much as digits as its factorization.

19226428423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 43.

The spelling of 19226428423 in words is "nineteen billion, two hundred twenty-six million, four hundred twenty-eight thousand, four hundred twenty-three".