68341918554 has 48 divisors (see below), whose sum is σ = 182245120512. Its totient is φ = 18024241824.

The previous prime is 68341918529. The next prime is 68341918571. The reversal of 68341918554 is 45581914386.

It is a happy number.

68341918554 is a `hidden beast` number, since 6 + 83 + 4 + 1 + 9 + 1 + 8 + 554 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 68341918554.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20859754 + ... + 20863029.

It is an arithmetic number, because the mean of its divisors is an integer number (3796773344).

Almost surely, 2^68341918554 is an apocalyptic number.

68341918554 is an abundant number, since it is smaller than the sum of its proper divisors (113903201958).

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

68341918554 is a wasteful number, since it uses less digits than its factorization.

68341918554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41722811 (or 41722808 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 54.

The spelling of 68341918554 in words is "sixty-eight billion, three hundred forty-one million, nine hundred eighteen thousand, five hundred fifty-four".