19680789473 has 12 divisors (see below), whose sum is σ = 20549634300. Its totient is φ = 18834828480.

The previous prime is 19680789439. The next prime is 19680789521. The reversal of 19680789473 is 37498708691.

It can be written as a sum of positive squares in 6 ways, for example, as 2596208209 + 17084581264 = 50953^2 + 130708^2 .

It is not a de Polignac number, because 19680789473 - 2⁸ = 19680789217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19680789413) 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 11 ways as a sum of consecutive naturals, for example, 66203 + ... + 209151.

It is an arithmetic number, because the mean of its divisors is an integer number (1712469525).

Almost surely, 2^19680789473 is an apocalyptic number.

It is an amenable number.

19680789473 is a deficient number, since it is larger than the sum of its proper divisors (868844827).

19680789473 is an equidigital number, since it uses as much as digits as its factorization.

19680789473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143108 (or 143047 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 62.

The spelling of 19680789473 in words is "nineteen billion, six hundred eighty million, seven hundred eighty-nine thousand, four hundred seventy-three".