68118650 has 24 divisors (see below), whose sum is σ = 127248924. Its totient is φ = 27129600.

The previous prime is 68118647. The next prime is 68118679. The reversal of 68118650 is 5681186.

It can be written as a sum of positive squares in 6 ways, for example, as 43546801 + 24571849 = 6599^2 + 4957^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 68118650.

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 11 ways as a sum of consecutive naturals, for example, 9224 + ... + 14876.

Almost surely, 2^68118650 is an apocalyptic number.

68118650 is a deficient number, since it is larger than the sum of its proper divisors (59130274).

68118650 is a wasteful number, since it uses less digits than its factorization.

68118650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5906 (or 5901 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 68118650 is about 8253.4023287369. The cubic root of 68118650 is about 408.4027685152.

The spelling of 68118650 in words is "sixty-eight million, one hundred eighteen thousand, six hundred fifty".