68628650 has 24 divisors (see below), whose sum is σ = 128429280. Its totient is φ = 27283760.

The previous prime is 68628649. The next prime is 68628661. The reversal of 68628650 is 5682686.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 68628598 and 68628607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4241 + ... + 12459.

It is an arithmetic number, because the mean of its divisors is an integer number (5351220).

Almost surely, 2^68628650 is an apocalyptic number.

68628650 is a deficient number, since it is larger than the sum of its proper divisors (59800630).

68628650 is a wasteful number, since it uses less digits than its factorization.

68628650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8398 (or 8393 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 68628650 is about 8284.2410636099. The cubic root of 68628650 is about 409.4194639271.

The spelling of 68628650 in words is "sixty-eight million, six hundred twenty-eight thousand, six hundred fifty".