68941178572 has 18 divisors (see below), whose sum is σ = 140344542492. Its totient is φ = 29546219304.

The previous prime is 68941178563. The next prime is 68941178573. The reversal of 68941178572 is 27587114986.

It is a super-2 number, since 2×68941178572² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68941178573) 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 5 ways as a sum of consecutive naturals, for example, 175870158 + ... + 175870549.

Almost surely, 2^68941178572 is an apocalyptic number.

It is an amenable number.

68941178572 is an abundant number, since it is smaller than the sum of its proper divisors (71403363920).

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

68941178572 is a wasteful number, since it uses less digits than its factorization.

68941178572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351740725 (or 351740716 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 58.

The spelling of 68941178572 in words is "sixty-eight billion, nine hundred forty-one million, one hundred seventy-eight thousand, five hundred seventy-two".