68220049868 has 12 divisors (see below), whose sum is σ = 119417740680. Its totient is φ = 34100695392.

The previous prime is 68220049867. The next prime is 68220049889. The reversal of 68220049868 is 86894002286.

It is not an unprimeable number, because it can be changed into a prime (68220049861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2315921 + ... + 2345192.

It is an arithmetic number, because the mean of its divisors is an integer number (9951478390).

Almost surely, 2^68220049868 is an apocalyptic number.

It is an amenable number.

68220049868 is a deficient number, since it is larger than the sum of its proper divisors (51197690812).

68220049868 is a wasteful number, since it uses less digits than its factorization.

68220049868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4664776 (or 4664774 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 53.

The spelling of 68220049868 in words is "sixty-eight billion, two hundred twenty million, forty-nine thousand, eight hundred sixty-eight".