68078346844134 has 96 divisors (see below), whose sum is σ = 156333489016320. Its totient is φ = 19711790017920.

The previous prime is 68078346844129. The next prime is 68078346844159. The reversal of 68078346844134 is 43144864387086.

It is a super-2 number, since 2×68078346844134² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13470447 + ... + 17821605.

It is an arithmetic number, because the mean of its divisors is an integer number (1628473843920).

Almost surely, 2^{68078346844134} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68078346844134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78166744508160).

68078346844134 is an abundant number, since it is smaller than the sum of its proper divisors (88255142172186).

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

68078346844134 is a wasteful number, since it uses less digits than its factorization.

68078346844134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4352146 (or 4352135 counting only the distinct ones).

The product of its (nonzero) digits is 297271296, while the sum is 66.

The spelling of 68078346844134 in words is "sixty-eight trillion, seventy-eight billion, three hundred forty-six million, eight hundred forty-four thousand, one hundred thirty-four".