68078507576156 has 96 divisors (see below), whose sum is σ = 148638986496000. Its totient is φ = 26505518215680.

The previous prime is 68078507576119. The next prime is 68078507576179. The reversal of 68078507576156 is 65167570587086.

It is a self number, because there is not a number n which added to its sum of digits gives 68078507576156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3274726610 + ... + 3274747398.

It is an arithmetic number, because the mean of its divisors is an integer number (1548322776000).

Almost surely, 2^{68078507576156} is an apocalyptic number.

It is an amenable number.

68078507576156 is an abundant number, since it is smaller than the sum of its proper divisors (80560478919844).

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

68078507576156 is a wasteful number, since it uses less digits than its factorization.

68078507576156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27747 (or 27745 counting only the distinct ones).

The product of its (nonzero) digits is 592704000, while the sum is 71.

The spelling of 68078507576156 in words is "sixty-eight trillion, seventy-eight billion, five hundred seven million, five hundred seventy-six thousand, one hundred fifty-six".