68178053356 has 18 divisors (see below), whose sum is σ = 138791037588. Its totient is φ = 29219165640.

The previous prime is 68178053329. The next prime is 68178053357. The reversal of 68178053356 is 65335087186.

It is not an unprimeable number, because it can be changed into a prime (68178053357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 173923410 + ... + 173923801.

Almost surely, 2^68178053356 is an apocalyptic number.

It is an amenable number.

68178053356 is an abundant number, since it is smaller than the sum of its proper divisors (70612984232).

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

68178053356 is a wasteful number, since it uses less digits than its factorization.

68178053356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347847229 (or 347847220 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 68178053356 in words is "sixty-eight billion, one hundred seventy-eight million, fifty-three thousand, three hundred fifty-six".