68356618 has 8 divisors (see below), whose sum is σ = 111856320. Its totient is φ = 31071180.

The previous prime is 68356601. The next prime is 68356637. The reversal of 68356618 is 81665386.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1553538 + ... + 1553581.

It is an arithmetic number, because the mean of its divisors is an integer number (13982040).

Almost surely, 2^68356618 is an apocalyptic number.

68356618 is a deficient number, since it is larger than the sum of its proper divisors (43499702).

68356618 is a wasteful number, since it uses less digits than its factorization.

68356618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3107132.

The product of its digits is 207360, while the sum is 43.

The square root of 68356618 is about 8267.8061177074. The cubic root of 68356618 is about 408.8777918129.

The spelling of 68356618 in words is "sixty-eight million, three hundred fifty-six thousand, six hundred eighteen".