68418078 has 8 divisors (see below), whose sum is σ = 136836168. Its totient is φ = 22806024.

The previous prime is 68418073. The next prime is 68418079. The reversal of 68418078 is 87081486.

It is a sphenic number, since it is the product of 3 distinct primes.

68418078 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68418073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5701501 + ... + 5701512.

It is an arithmetic number, because the mean of its divisors is an integer number (17104521).

Almost surely, 2^68418078 is an apocalyptic number.

68418078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68418078 is a wasteful number, since it uses less digits than its factorization.

68418078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11403018.

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 68418078 is about 8271.5221090196. The cubic root of 68418078 is about 409.0002969054. Note that the first 3 decimals are identical.

The spelling of 68418078 in words is "sixty-eight million, four hundred eighteen thousand, seventy-eight".