68253218 has 8 divisors (see below), whose sum is σ = 111687120. Its totient is φ = 31024180.

The previous prime is 68253217. The next prime is 68253239. The reversal of 68253218 is 81235286.

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

It is not an unprimeable number, because it can be changed into a prime (68253217) 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, 1551188 + ... + 1551231.

It is an arithmetic number, because the mean of its divisors is an integer number (13960890).

Almost surely, 2^68253218 is an apocalyptic number.

68253218 is a deficient number, since it is larger than the sum of its proper divisors (43433902).

68253218 is a wasteful number, since it uses less digits than its factorization.

68253218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3102432.

The product of its digits is 23040, while the sum is 35.

The square root of 68253218 is about 8261.5505808535. The cubic root of 68253218 is about 408.6715240553.

The spelling of 68253218 in words is "sixty-eight million, two hundred fifty-three thousand, two hundred eighteen".