68501218 has 8 divisors (see below), whose sum is σ = 103024080. Its totient is φ = 34159860.

The previous prime is 68501207. The next prime is 68501221. The reversal of 68501218 is 81210586.

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

It is a self number, because there is not a number n which added to its sum of digits gives 68501218.

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, 44428 + ... + 45943.

It is an arithmetic number, because the mean of its divisors is an integer number (12878010).

Almost surely, 2^68501218 is an apocalyptic number.

68501218 is a deficient number, since it is larger than the sum of its proper divisors (34522862).

68501218 is a wasteful number, since it uses less digits than its factorization.

68501218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90752.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 68501218 is about 8276.5462603673. The cubic root of 68501218 is about 409.1658989472.

The spelling of 68501218 in words is "sixty-eight million, five hundred one thousand, two hundred eighteen".