19706128059 has 4 divisors (see below), whose sum is σ = 26274837416. Its totient is φ = 13137418704.

The previous prime is 19706128049. The next prime is 19706128063. The reversal of 19706128059 is 95082160791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95082160791 = 3 ⋅31694053597.

It is not a de Polignac number, because 19706128059 - 2¹⁵ = 19706095291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19706127999 and 19706128017.

It is not an unprimeable number, because it can be changed into a prime (19706128049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3284354674 + ... + 3284354679.

It is an arithmetic number, because the mean of its divisors is an integer number (6568709354).

Almost surely, 2^19706128059 is an apocalyptic number.

19706128059 is a deficient number, since it is larger than the sum of its proper divisors (6568709357).

19706128059 is an equidigital number, since it uses as much as digits as its factorization.

19706128059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6568709356.

The product of its (nonzero) digits is 272160, while the sum is 48.

The spelling of 19706128059 in words is "nineteen billion, seven hundred six million, one hundred twenty-eight thousand, fifty-nine".