19099218459 has 8 divisors (see below), whose sum is σ = 25474960192. Its totient is φ = 12728144520.

The previous prime is 19099218443. The next prime is 19099218493. The reversal of 19099218459 is 95481299091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19099218459 - 2⁴ = 19099218443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19099218399 and 19099218408.

It is not an unprimeable number, because it can be changed into a prime (19099218409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1157389 + ... + 1173774.

It is an arithmetic number, because the mean of its divisors is an integer number (3184370024).

Almost surely, 2^19099218459 is an apocalyptic number.

19099218459 is a deficient number, since it is larger than the sum of its proper divisors (6375741733).

19099218459 is a wasteful number, since it uses less digits than its factorization.

19099218459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333897.

The product of its (nonzero) digits is 2099520, while the sum is 57.

The spelling of 19099218459 in words is "nineteen billion, ninety-nine million, two hundred eighteen thousand, four hundred fifty-nine".