17942838242 has 16 divisors (see below), whose sum is σ = 31129745472. Its totient is φ = 7597139280.

The previous prime is 17942838181. The next prime is 17942838247. The reversal of 17942838242 is 24283824971.

It is not an unprimeable number, because it can be changed into a prime (17942838247) 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, 7719509 + ... + 7721832.

It is an arithmetic number, because the mean of its divisors is an integer number (1945609092).

Almost surely, 2^17942838242 is an apocalyptic number.

17942838242 is a deficient number, since it is larger than the sum of its proper divisors (13186907230).

17942838242 is a wasteful number, since it uses less digits than its factorization.

17942838242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15441433.

The product of its digits is 1548288, while the sum is 50.

The spelling of 17942838242 in words is "seventeen billion, nine hundred forty-two million, eight hundred thirty-eight thousand, two hundred forty-two".