19293943922 has 18 divisors (see below), whose sum is σ = 31814652429. Its totient is φ = 8768992320.

The previous prime is 19293943871. The next prime is 19293943969. The reversal of 19293943922 is 22934939291.

It can be written as a sum of positive squares in 2 ways, for example, as 13312313641 + 5981630281 = 115379^2 + 77341^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=98219.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2156354 + ... + 2165282.

Almost surely, 2^19293943922 is an apocalyptic number.

19293943922 is a deficient number, since it is larger than the sum of its proper divisors (12520708507).

19293943922 is an frugal number, since it uses more digits than its factorization.

19293943922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17882 (or 8942 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 53.

The spelling of 19293943922 in words is "nineteen billion, two hundred ninety-three million, nine hundred forty-three thousand, nine hundred twenty-two".