68051820348 has 36 divisors (see below), whose sum is σ = 172970281848. Its totient is φ = 22558612320.

The previous prime is 68051820311. The next prime is 68051820349. The reversal of 68051820348 is 84302815086.

68051820348 is a `hidden beast` number, since 6 + 80 + 518 + 20 + 34 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×68051820348² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68051820349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5215386 + ... + 5228417.

Almost surely, 2^68051820348 is an apocalyptic number.

It is an amenable number.

68051820348 is an abundant number, since it is smaller than the sum of its proper divisors (104918461500).

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

68051820348 is a wasteful number, since it uses less digits than its factorization.

68051820348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10443994 (or 10443989 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 68051820348 in words is "sixty-eight billion, fifty-one million, eight hundred twenty thousand, three hundred forty-eight".