68543117068 has 24 divisors (see below), whose sum is σ = 121207806720. Its totient is φ = 33912825360.

The previous prime is 68543117059. The next prime is 68543117089. The reversal of 68543117068 is 86071134586.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480363 + ... + 606493.

It is an arithmetic number, because the mean of its divisors is an integer number (5050325280).

Almost surely, 2^68543117068 is an apocalyptic number.

It is an amenable number.

68543117068 is a deficient number, since it is larger than the sum of its proper divisors (52664689652).

68543117068 is a wasteful number, since it uses less digits than its factorization.

68543117068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127557 (or 127555 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 68543117068 in words is "sixty-eight billion, five hundred forty-three million, one hundred seventeen thousand, sixty-eight".