68708129308 has 288 divisors, whose sum is σ = 163794935808. Its totient is φ = 24525504000.

The previous prime is 68708129299. The next prime is 68708129381. The reversal of 68708129308 is 80392180786.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 411425841 + ... + 411426007.

It is an arithmetic number, because the mean of its divisors is an integer number (568732416).

Almost surely, 2^68708129308 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68708129308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81897467904).

68708129308 is an abundant number, since it is smaller than the sum of its proper divisors (95086806500).

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

68708129308 is a wasteful number, since it uses less digits than its factorization.

68708129308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 68708129308 in words is "sixty-eight billion, seven hundred eight million, one hundred twenty-nine thousand, three hundred eight".