19239842044519 has 8 divisors (see below), whose sum is σ = 20508825632000. Its totient is φ = 17996494489272.

The previous prime is 19239842044517. The next prime is 19239842044547. The reversal of 19239842044519 is 91544024893291.

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

It is not a de Polignac number, because 19239842044519 - 2¹ = 19239842044517 is a prime.

It is a super-2 number, since 2×19239842044519² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19239842044517) 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, 6409006509 + ... + 6409009510.

It is an arithmetic number, because the mean of its divisors is an integer number (2563603204000).

Almost surely, 2^{19239842044519} is an apocalyptic number.

19239842044519 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

19239842044519 is a deficient number, since it is larger than the sum of its proper divisors (1268983587481).

19239842044519 is a wasteful number, since it uses less digits than its factorization.

19239842044519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12818016117.

The product of its (nonzero) digits is 22394880, while the sum is 61.

The spelling of 19239842044519 in words is "nineteen trillion, two hundred thirty-nine billion, eight hundred forty-two million, forty-four thousand, five hundred nineteen".