68485802559 has 8 divisors (see below), whose sum is σ = 91316480640. Its totient is φ = 45656163096.

The previous prime is 68485802549. The next prime is 68485802573. The reversal of 68485802559 is 95520858486.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68485802559 - 2¹¹ = 68485800511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68485802549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89949 + ... + 380870.

It is an arithmetic number, because the mean of its divisors is an integer number (11414560080).

Almost surely, 2^68485802559 is an apocalyptic number.

68485802559 is a deficient number, since it is larger than the sum of its proper divisors (22830678081).

68485802559 is a wasteful number, since it uses less digits than its factorization.

68485802559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519309.

The product of its (nonzero) digits is 27648000, while the sum is 60.

The spelling of 68485802559 in words is "sixty-eight billion, four hundred eighty-five million, eight hundred two thousand, five hundred fifty-nine".