19042338502517 has 12 divisors (see below), whose sum is σ = 21715923413184. Its totient is φ = 16558555214520.

The previous prime is 19042338502501. The next prime is 19042338502529. The reversal of 19042338502517 is 71520583324091.

It is not a de Polignac number, because 19042338502517 - 2⁴ = 19042338502501 is a prime.

It is a super-2 number, since 2×19042338502517² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19042338502597) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1636215053 + ... + 1636226690.

It is an arithmetic number, because the mean of its divisors is an integer number (1809660284432).

Almost surely, 2^{19042338502517} is an apocalyptic number.

It is an amenable number.

19042338502517 is a deficient number, since it is larger than the sum of its proper divisors (2673584910667).

19042338502517 is a wasteful number, since it uses less digits than its factorization.

19042338502517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3272441800 (or 3272441777 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 19042338502517 in words is "nineteen trillion, forty-two billion, three hundred thirty-eight million, five hundred two thousand, five hundred seventeen".