68681801803 has 4 divisors (see below), whose sum is σ = 69222603520. Its totient is φ = 68141000088.

The previous prime is 68681801801. The next prime is 68681801827. The reversal of 68681801803 is 30810818686.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68681801803 - 2¹ = 68681801801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68681801801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270400668 + ... + 270400921.

It is an arithmetic number, because the mean of its divisors is an integer number (17305650880).

Almost surely, 2^68681801803 is an apocalyptic number.

68681801803 is a deficient number, since it is larger than the sum of its proper divisors (540801717).

68681801803 is a wasteful number, since it uses less digits than its factorization.

68681801803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540801716.

The product of its (nonzero) digits is 442368, while the sum is 49.

The spelling of 68681801803 in words is "sixty-eight billion, six hundred eighty-one million, eight hundred one thousand, eight hundred three".