1019719889422 has 16 divisors (see below), whose sum is σ = 1647263509920. Its totient is φ = 470633180832.

The previous prime is 1019719889417. The next prime is 1019719889423. The reversal of 1019719889422 is 2249889179101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1019719889423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1870828 + ... + 2353600.

It is an arithmetic number, because the mean of its divisors is an integer number (102953969370).

Almost surely, 2^{1019719889422} is an apocalyptic number.

1019719889422 is a deficient number, since it is larger than the sum of its proper divisors (627543620498).

1019719889422 is a wasteful number, since it uses less digits than its factorization.

1019719889422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564027.

The product of its (nonzero) digits is 5225472, while the sum is 61.

The spelling of 1019719889422 in words is "one trillion, nineteen billion, seven hundred nineteen million, eight hundred eighty-nine thousand, four hundred twenty-two".