19070109849 has 16 divisors (see below), whose sum is σ = 29085836672. Its totient is φ = 10887222528.

The previous prime is 19070109841. The next prime is 19070109911. The reversal of 19070109849 is 94890107091.

It is not a de Polignac number, because 19070109849 - 2³ = 19070109841 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19070109798 and 19070109807.

It is not an unprimeable number, because it can be changed into a prime (19070109841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 392464 + ... + 438369.

It is an arithmetic number, because the mean of its divisors is an integer number (1817864792).

Almost surely, 2^19070109849 is an apocalyptic number.

It is an amenable number.

19070109849 is a deficient number, since it is larger than the sum of its proper divisors (10015726823).

19070109849 is a wasteful number, since it uses less digits than its factorization.

19070109849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831936.

The product of its (nonzero) digits is 163296, while the sum is 48.

The spelling of 19070109849 in words is "nineteen billion, seventy million, one hundred nine thousand, eight hundred forty-nine".