19784703152 has 10 divisors (see below), whose sum is σ = 38332862388. Its totient is φ = 9892351568.

The previous prime is 19784703151. The next prime is 19784703187. The reversal of 19784703152 is 25130748791.

It is a junction number, because it is equal to n+sod(n) for n = 19784703097 and 19784703106.

It is not an unprimeable number, because it can be changed into a prime (19784703151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 618271958 + ... + 618271989.

Almost surely, 2^19784703152 is an apocalyptic number.

It is an amenable number.

19784703152 is a deficient number, since it is larger than the sum of its proper divisors (18548159236).

19784703152 is a wasteful number, since it uses less digits than its factorization.

19784703152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236543955 (or 1236543949 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 19784703152 in words is "nineteen billion, seven hundred eighty-four million, seven hundred three thousand, one hundred fifty-two".