19267842859 has 4 divisors (see below), whose sum is σ = 19275636616. Its totient is φ = 19260049104.

The previous prime is 19267842851. The next prime is 19267842871. The reversal of 19267842859 is 95824876291.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 19267842859 - 2³ = 19267842851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19267842797 and 19267842806.

It is not an unprimeable number, because it can be changed into a prime (19267842851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3893169 + ... + 3898114.

It is an arithmetic number, because the mean of its divisors is an integer number (4818909154).

Almost surely, 2^19267842859 is an apocalyptic number.

19267842859 is a deficient number, since it is larger than the sum of its proper divisors (7793757).

19267842859 is an equidigital number, since it uses as much as digits as its factorization.

19267842859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7793756.

The product of its digits is 17418240, while the sum is 61.

The spelling of 19267842859 in words is "nineteen billion, two hundred sixty-seven million, eight hundred forty-two thousand, eight hundred fifty-nine".