19985483122 has 24 divisors (see below), whose sum is σ = 32961104316. Its totient is φ = 9081600000.

The previous prime is 19985483113. The next prime is 19985483123. The reversal of 19985483122 is 22138458991.

It can be written as a sum of positive squares in 2 ways, for example, as 15700340601 + 4285142521 = 125301^2 + 65461^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 19985483122.

It is not an unprimeable number, because it can be changed into a prime (19985483123) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 957922 + ... + 978562.

Almost surely, 2^19985483122 is an apocalyptic number.

19985483122 is a deficient number, since it is larger than the sum of its proper divisors (12975621194).

19985483122 is a wasteful number, since it uses less digits than its factorization.

19985483122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24666 (or 24655 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 52.

The spelling of 19985483122 in words is "nineteen billion, nine hundred eighty-five million, four hundred eighty-three thousand, one hundred twenty-two".