19798028446 has 8 divisors (see below), whose sum is σ = 33939477360. Its totient is φ = 8484869328.

The previous prime is 19798028323. The next prime is 19798028461. The reversal of 19798028446 is 64482089791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 707072431 + ... + 707072458.

It is an arithmetic number, because the mean of its divisors is an integer number (4242434670).

Almost surely, 2^19798028446 is an apocalyptic number.

19798028446 is a deficient number, since it is larger than the sum of its proper divisors (14141448914).

19798028446 is a wasteful number, since it uses less digits than its factorization.

19798028446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414144898.

The product of its (nonzero) digits is 6967296, while the sum is 58.

The spelling of 19798028446 in words is "nineteen billion, seven hundred ninety-eight million, twenty-eight thousand, four hundred forty-six".