717628917068 has 24 divisors (see below), whose sum is σ = 1436928729600. Its totient is φ = 307197201168.

The previous prime is 717628917023. The next prime is 717628917077. The reversal of 717628917068 is 860719826717.

It is a super-2 number, since 2×717628917068² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 717628917068.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14894228 + ... + 14942331.

It is an arithmetic number, because the mean of its divisors is an integer number (59872030400).

Almost surely, 2^717628917068 is an apocalyptic number.

It is an amenable number.

717628917068 is an abundant number, since it is smaller than the sum of its proper divisors (719299812532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

717628917068 is a wasteful number, since it uses less digits than its factorization.

717628917068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29837429 (or 29837427 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 62.

The spelling of 717628917068 in words is "seven hundred seventeen billion, six hundred twenty-eight million, nine hundred seventeen thousand, sixty-eight".