68128850 has 48 divisors (see below), whose sum is σ = 132098688. Its totient is φ = 26120640.

The previous prime is 68128811. The next prime is 68128861. The reversal of 68128850 is 5882186.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124277 + ... + 124823.

It is an arithmetic number, because the mean of its divisors is an integer number (2752056).

Almost surely, 2^68128850 is an apocalyptic number.

68128850 is a deficient number, since it is larger than the sum of its proper divisors (63969838).

68128850 is a wasteful number, since it uses less digits than its factorization.

68128850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 68128850 is about 8254.0202325897. The cubic root of 68128850 is about 408.4231520682.

The spelling of 68128850 in words is "sixty-eight million, one hundred twenty-eight thousand, eight hundred fifty".