178042668234 has 16 divisors (see below), whose sum is σ = 356172426720. Its totient is φ = 59333041040.

The previous prime is 178042668233. The next prime is 178042668239. The reversal of 178042668234 is 432866240871.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (178042668233) 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 7 ways as a sum of consecutive naturals, for example, 3602169 + ... + 3651260.

It is an arithmetic number, because the mean of its divisors is an integer number (22260776670).

Almost surely, 2^178042668234 is an apocalyptic number.

178042668234 is an abundant number, since it is smaller than the sum of its proper divisors (178129758486).

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

178042668234 is a wasteful number, since it uses less digits than its factorization.

178042668234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7257525.

The product of its (nonzero) digits is 3096576, while the sum is 51.

The spelling of 178042668234 in words is "one hundred seventy-eight billion, forty-two million, six hundred sixty-eight thousand, two hundred thirty-four".