68067377968 has 60 divisors (see below), whose sum is σ = 141590482768. Its totient is φ = 31673980800.

The previous prime is 68067377947. The next prime is 68067377969. The reversal of 68067377968 is 86977376086.

It is not an unprimeable number, because it can be changed into a prime (68067377969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204493 + ... + 421843.

Almost surely, 2^68067377968 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 68067377968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70795241384).

68067377968 is an abundant number, since it is smaller than the sum of its proper divisors (73523104800).

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

68067377968 is a wasteful number, since it uses less digits than its factorization.

68067377968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217442 (or 217413 counting only the distinct ones).

The product of its (nonzero) digits is 128024064, while the sum is 67.

It can be divided in two parts, 680673 and 77968, that added together give a square (758641 = 871²).

The spelling of 68067377968 in words is "sixty-eight billion, sixty-seven million, three hundred seventy-seven thousand, nine hundred sixty-eight".