67878834308 has 12 divisors (see below), whose sum is σ = 118826189580. Its totient is φ = 33928494432.

The previous prime is 67878834281. The next prime is 67878834343. The reversal of 67878834308 is 80343887876.

67878834308 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 17509111684 + 50369722624 = 132322^2 + 224432^2 .

It is a super-2 number, since 2×67878834308² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2716691 + ... + 2741562.

It is an arithmetic number, because the mean of its divisors is an integer number (9902182465).

Almost surely, 2^67878834308 is an apocalyptic number.

It is an amenable number.

67878834308 is a deficient number, since it is larger than the sum of its proper divisors (50947355272).

67878834308 is a wasteful number, since it uses less digits than its factorization.

67878834308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5461366 (or 5461364 counting only the distinct ones).

The product of its (nonzero) digits is 43352064, while the sum is 62.

The spelling of 67878834308 in words is "sixty-seven billion, eight hundred seventy-eight million, eight hundred thirty-four thousand, three hundred eight".