19112049423289 has 9 divisors (see below), whose sum is σ = 19137583783269. Its totient is φ = 19086549104700.

The previous prime is 19112049423209. The next prime is 19112049423301. The reversal of 19112049423289 is 98232494021191.

The square root of 19112049423289 is 4371733.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 19112049423289 - 2²⁷ = 19111915205561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19112049423209) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3860237764 + ... + 3860242714.

It is an arithmetic number, because the mean of its divisors is an integer number (2126398198141).

Almost surely, 2^{19112049423289} is an apocalyptic number.

19112049423289 is the 4371733-rd square number.

19112049423289 is the 2185867-th centered octagonal number.

It is an amenable number.

19112049423289 is a deficient number, since it is larger than the sum of its proper divisors (25534359980).

19112049423289 is an frugal number, since it uses more digits than its factorization.

19112049423289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11668 (or 5834 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 55.

The spelling of 19112049423289 in words is "nineteen trillion, one hundred twelve billion, forty-nine million, four hundred twenty-three thousand, two hundred eighty-nine".