19713433922 has 54 divisors (see below), whose sum is σ = 37281635289. Its totient is φ = 7791572880.

The previous prime is 19713433879. The next prime is 19713433931. The reversal of 19713433922 is 22933431791.

It can be written as a sum of positive squares in 2 ways, for example, as 16855569241 + 2857864681 = 129829^2 + 53459^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=99281.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 18068597 + ... + 18069687.

Almost surely, 2^19713433922 is an apocalyptic number.

19713433922 is a deficient number, since it is larger than the sum of its proper divisors (17568201367).

19713433922 is an equidigital number, since it uses as much as digits as its factorization.

19713433922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224 (or 1113 counting only the distinct ones).

The product of its digits is 244944, while the sum is 44.

The spelling of 19713433922 in words is "nineteen billion, seven hundred thirteen million, four hundred thirty-three thousand, nine hundred twenty-two".