68429455868 has 12 divisors (see below), whose sum is σ = 120359425032. Its totient is φ = 34041048720.

The previous prime is 68429455849. The next prime is 68429455889. The reversal of 68429455868 is 86855492486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43418918 + ... + 43420493.

It is an arithmetic number, because the mean of its divisors is an integer number (10029952086).

Almost surely, 2^68429455868 is an apocalyptic number.

It is an amenable number.

68429455868 is a deficient number, since it is larger than the sum of its proper divisors (51929969164).

68429455868 is a wasteful number, since it uses less digits than its factorization.

68429455868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86839612 (or 86839610 counting only the distinct ones).

The product of its digits is 132710400, while the sum is 65.

The spelling of 68429455868 in words is "sixty-eight billion, four hundred twenty-nine million, four hundred fifty-five thousand, eight hundred sixty-eight".