1912043472239 has 4 divisors (see below), whose sum is σ = 1912863038856. Its totient is φ = 1911223905624.

The previous prime is 1912043472211. The next prime is 1912043472299. The reversal of 1912043472239 is 9322743402191.

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 1912043472239 - 2³⁶ = 1843323995503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1912043472193 and 1912043472202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912043472299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409779809 + ... + 409784474.

It is an arithmetic number, because the mean of its divisors is an integer number (478215759714).

Almost surely, 2^{1912043472239} is an apocalyptic number.

1912043472239 is a deficient number, since it is larger than the sum of its proper divisors (819566617).

1912043472239 is an equidigital number, since it uses as much as digits as its factorization.

1912043472239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819566616.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 1912043472239 in words is "one trillion, nine hundred twelve billion, forty-three million, four hundred seventy-two thousand, two hundred thirty-nine".