19007943219 has 16 divisors (see below), whose sum is σ = 29816382240. Its totient is φ = 11926552320.

The previous prime is 19007943187. The next prime is 19007943223. The reversal of 19007943219 is 91234970091.

It is not a de Polignac number, because 19007943219 - 2⁵ = 19007943187 is a prime.

It is a super-2 number, since 2×19007943219² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19007943239) 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, 20705362 + ... + 20706279.

It is an arithmetic number, because the mean of its divisors is an integer number (1863523890).

Almost surely, 2^19007943219 is an apocalyptic number.

19007943219 is a deficient number, since it is larger than the sum of its proper divisors (10808439021).

19007943219 is a wasteful number, since it uses less digits than its factorization.

19007943219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41411667 (or 41411661 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The spelling of 19007943219 in words is "nineteen billion, seven million, nine hundred forty-three thousand, two hundred nineteen".