19428849422 has 4 divisors (see below), whose sum is σ = 29143274136. Its totient is φ = 9714424710.

The previous prime is 19428849421. The next prime is 19428849439. The reversal of 19428849422 is 22494882491.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19428849421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4857212354 + ... + 4857212357.

It is an arithmetic number, because the mean of its divisors is an integer number (7285818534).

Almost surely, 2^19428849422 is an apocalyptic number.

19428849422 is a deficient number, since it is larger than the sum of its proper divisors (9714424714).

19428849422 is an equidigital number, since it uses as much as digits as its factorization.

19428849422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9714424713.

The product of its digits is 2654208, while the sum is 53.

The spelling of 19428849422 in words is "nineteen billion, four hundred twenty-eight million, eight hundred forty-nine thousand, four hundred twenty-two".