19519848484 has 24 divisors (see below), whose sum is σ = 34829154360. Its totient is φ = 9568925184.

The previous prime is 19519848473. The next prime is 19519848497. The reversal of 19519848484 is 48484891591.

It can be written as a sum of positive squares in 4 ways, for example, as 934524900 + 18585323584 = 30570^2 + 136328^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 270732 + ... + 335164.

It is an arithmetic number, because the mean of its divisors is an integer number (1451214765).

Almost surely, 2^19519848484 is an apocalyptic number.

It is an amenable number.

19519848484 is a deficient number, since it is larger than the sum of its proper divisors (15309305876).

19519848484 is a wasteful number, since it uses less digits than its factorization.

19519848484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65919 (or 65917 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 61.

The spelling of 19519848484 in words is "nineteen billion, five hundred nineteen million, eight hundred forty-eight thousand, four hundred eighty-four".