68153458178 has 16 divisors (see below), whose sum is σ = 110381515776. Its totient is φ = 31373308560.

The previous prime is 68153458171. The next prime is 68153458231. The reversal of 68153458178 is 87185435186.

It is not an unprimeable number, because it can be changed into a prime (68153458171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3412088 + ... + 3432003.

It is an arithmetic number, because the mean of its divisors is an integer number (6898844736).

Almost surely, 2^68153458178 is an apocalyptic number.

68153458178 is a deficient number, since it is larger than the sum of its proper divisors (42228057598).

68153458178 is a wasteful number, since it uses less digits than its factorization.

68153458178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6844489.

The product of its digits is 6451200, while the sum is 56.

The spelling of 68153458178 in words is "sixty-eight billion, one hundred fifty-three million, four hundred fifty-eight thousand, one hundred seventy-eight".