68866455466798 has 16 divisors (see below), whose sum is σ = 112690849685040. Its totient is φ = 31302854804800.

The previous prime is 68866455466751. The next prime is 68866455466807. The reversal of 68866455466798 is 89766455466886.

It is a congruent 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, 5373138 + ... + 12907498.

It is an arithmetic number, because the mean of its divisors is an integer number (7043178105315).

Almost surely, 2^{68866455466798} is an apocalyptic number.

68866455466798 is a deficient number, since it is larger than the sum of its proper divisors (43824394218242).

68866455466798 is a wasteful number, since it uses less digits than its factorization.

68866455466798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7949843.

The product of its digits is 100329062400, while the sum is 88.

Adding to 68866455466798 its sum of digits (88), we get a palindrome (68866455466886).

The spelling of 68866455466798 in words is "sixty-eight trillion, eight hundred sixty-six billion, four hundred fifty-five million, four hundred sixty-six thousand, seven hundred ninety-eight".