68216676 has 24 divisors (see below), whose sum is σ = 173642784. Its totient is φ = 20671680.

The previous prime is 68216651. The next prime is 68216683. The reversal of 68216676 is 67661286.

It is a happy number.

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, 258265 + ... + 258528.

It is an arithmetic number, because the mean of its divisors is an integer number (7235116).

Almost surely, 2^68216676 is an apocalyptic number.

68216676 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

68216676 is an abundant number, since it is smaller than the sum of its proper divisors (105426108).

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

68216676 is a wasteful number, since it uses less digits than its factorization.

68216676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516811 (or 516809 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 68216676 is about 8259.3387144492. The cubic root of 68216676 is about 408.5985783337.

The spelling of 68216676 in words is "sixty-eight million, two hundred sixteen thousand, six hundred seventy-six".