68031650 has 24 divisors (see below), whose sum is σ = 127669284. Its totient is φ = 26969600.

The previous prime is 68031643. The next prime is 68031683. The reversal of 68031650 is 5613086.

It can be written as a sum of positive squares in 6 ways, for example, as 9616201 + 58415449 = 3101^2 + 7643^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 371 + ... + 11670.

Almost surely, 2^68031650 is an apocalyptic number.

68031650 is a deficient number, since it is larger than the sum of its proper divisors (59637634).

68031650 is a wasteful number, since it uses less digits than its factorization.

68031650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12166 (or 12161 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 68031650 is about 8248.1300911176. The cubic root of 68031650 is about 408.2288260479.

The spelling of 68031650 in words is "sixty-eight million, thirty-one thousand, six hundred fifty".