19411986722 has 6 divisors (see below), whose sum is σ = 29118275643. Its totient is φ = 9705894842.

The previous prime is 19411986721. The next prime is 19411986733. The reversal of 19411986722 is 22768911491.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9705993361 + 9705993361 = 98519^2 + 98519^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=98519.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19411986721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 147779 + ... + 246297.

Almost surely, 2^19411986722 is an apocalyptic number.

19411986722 is a deficient number, since it is larger than the sum of its proper divisors (9706288921).

19411986722 is an frugal number, since it uses more digits than its factorization.

19411986722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197040 (or 98521 counting only the distinct ones).

The product of its digits is 435456, while the sum is 50.

Multiplying 19411986722 by its sum of digits (50), we get a square (970599336100 = 985190²).

The spelling of 19411986722 in words is "nineteen billion, four hundred eleven million, nine hundred eighty-six thousand, seven hundred twenty-two".