68451716 has 24 divisors (see below), whose sum is σ = 124467840. Its totient is φ = 32900000.

The previous prime is 68451709. The next prime is 68451727. The reversal of 68451716 is 61715486.

It is a self number, because there is not a number n which added to its sum of digits gives 68451716.

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 7 ways as a sum of consecutive naturals, for example, 27941 + ... + 30291.

It is an arithmetic number, because the mean of its divisors is an integer number (5186160).

Almost surely, 2^68451716 is an apocalyptic number.

It is an amenable number.

68451716 is a deficient number, since it is larger than the sum of its proper divisors (56016124).

68451716 is a wasteful number, since it uses less digits than its factorization.

68451716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2635 (or 2633 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 68451716 is about 8273.5552213060. Note that the first 3 decimals coincide. The cubic root of 68451716 is about 409.0673147574.

The spelling of 68451716 in words is "sixty-eight million, four hundred fifty-one thousand, seven hundred sixteen".