178542500143242 has 16 divisors (see below), whose sum is σ = 378090000303552. Its totient is φ = 56013333378240.

The previous prime is 178542500143207. The next prime is 178542500143279. The reversal of 178542500143242 is 242341005245871.

It is a junction number, because it is equal to n+sod(n) for n = 178542500143191 and 178542500143200.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 875208333934 + ... + 875208334137.

It is an arithmetic number, because the mean of its divisors is an integer number (23630625018972).

Almost surely, 2^{178542500143242} is an apocalyptic number.

178542500143242 is an abundant number, since it is smaller than the sum of its proper divisors (199547500160310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

178542500143242 is a wasteful number, since it uses less digits than its factorization.

178542500143242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750416668093.

The product of its (nonzero) digits is 2150400, while the sum is 48.

The spelling of 178542500143242 in words is "one hundred seventy-eight trillion, five hundred forty-two billion, five hundred million, one hundred forty-three thousand, two hundred forty-two".