68342178 has 16 divisors (see below), whose sum is σ = 139001760. Its totient is φ = 22394496.

The previous prime is 68342173. The next prime is 68342201. The reversal of 68342178 is 87124386.

It is not an unprimeable number, because it can be changed into a prime (68342173) 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, 96175 + ... + 96882.

It is an arithmetic number, because the mean of its divisors is an integer number (8687610).

Almost surely, 2^68342178 is an apocalyptic number.

68342178 is an abundant number, since it is smaller than the sum of its proper divisors (70659582).

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

68342178 is a wasteful number, since it uses less digits than its factorization.

68342178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193121.

The product of its digits is 64512, while the sum is 39.

The square root of 68342178 is about 8266.9328048557. The cubic root of 68342178 is about 408.8489986432.

The spelling of 68342178 in words is "sixty-eight million, three hundred forty-two thousand, one hundred seventy-eight".