68210618 has 8 divisors (see below), whose sum is σ = 116932512. Its totient is φ = 29233116.

The previous prime is 68210609. The next prime is 68210621. The reversal of 68210618 is 81601286.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2436080 + ... + 2436107.

It is an arithmetic number, because the mean of its divisors is an integer number (14616564).

Almost surely, 2^68210618 is an apocalyptic number.

68210618 is a deficient number, since it is larger than the sum of its proper divisors (48721894).

68210618 is a wasteful number, since it uses less digits than its factorization.

68210618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4872196.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 68210618 is about 8258.9719699246. The cubic root of 68210618 is about 408.5864827406.

The spelling of 68210618 in words is "sixty-eight million, two hundred ten thousand, six hundred eighteen".