19124343439 has 16 divisors (see below), whose sum is σ = 20971855872. Its totient is φ = 17384498208.

The previous prime is 19124343419. The next prime is 19124343449. The reversal of 19124343439 is 93434342191.

It is not a de Polignac number, because 19124343439 - 2⁷ = 19124343311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19124343395 and 19124343404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19124343419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224719 + ... + 297904.

It is an arithmetic number, because the mean of its divisors is an integer number (1310740992).

Almost surely, 2^19124343439 is an apocalyptic number.

19124343439 is a deficient number, since it is larger than the sum of its proper divisors (1847512433).

19124343439 is a wasteful number, since it uses less digits than its factorization.

19124343439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522726.

The product of its digits is 279936, while the sum is 43.

The spelling of 19124343439 in words is "nineteen billion, one hundred twenty-four million, three hundred forty-three thousand, four hundred thirty-nine".