68383278 has 40 divisors (see below), whose sum is σ = 159900048. Its totient is φ = 21802176.

The previous prime is 68383253. The next prime is 68383279. The reversal of 68383278 is 87238386.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68383279) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5451 + ... + 12902.

Almost surely, 2^68383278 is an apocalyptic number.

68383278 is an abundant number, since it is smaller than the sum of its proper divisors (91516770).

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

68383278 is a wasteful number, since it uses less digits than its factorization.

68383278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18390 (or 18381 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 68383278 is about 8269.4182383043. The cubic root of 68383278 is about 408.9309408492.

The spelling of 68383278 in words is "sixty-eight million, three hundred eighty-three thousand, two hundred seventy-eight".