19034023837 has 4 divisors (see below), whose sum is σ = 20153672316. Its totient is φ = 17914375360.

The previous prime is 19034023829. The next prime is 19034023843. The reversal of 19034023837 is 73832043091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73832043091 = 14303 ⋅5161997.

It can be written as a sum of positive squares in 2 ways, for example, as 5088539556 + 13945484281 = 71334^2 + 118091^2 .

It is a cyclic number.

It is not a de Polignac number, because 19034023837 - 2³ = 19034023829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19034023837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19034023847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559824214 + ... + 559824247.

It is an arithmetic number, because the mean of its divisors is an integer number (5038418079).

Almost surely, 2^19034023837 is an apocalyptic number.

19034023837 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

19034023837 is a deficient number, since it is larger than the sum of its proper divisors (1119648479).

19034023837 is a wasteful number, since it uses less digits than its factorization.

19034023837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119648478.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 19034023837 in words is "nineteen billion, thirty-four million, twenty-three thousand, eight hundred thirty-seven".