68866455466885 has 8 divisors (see below), whose sum is σ = 83270584321056. Its totient is φ = 54672605866320.

The previous prime is 68866455466871. The next prime is 68866455466943. The reversal of 68866455466885 is 58866455466886.

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

It is not a de Polignac number, because 68866455466885 - 2³³ = 68857865532293 is a prime.

It is a super-3 number, since 3×68866455466885³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

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, 52569812679 + ... + 52569813988.

It is an arithmetic number, because the mean of its divisors is an integer number (10408823040132).

Almost surely, 2^{68866455466885} is an apocalyptic number.

It is an amenable number.

68866455466885 is a deficient number, since it is larger than the sum of its proper divisors (14404128854171).

68866455466885 is a wasteful number, since it uses less digits than its factorization.

68866455466885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105139626803.

The product of its digits is 63700992000, while the sum is 85.

Subtracting from 68866455466885 its reverse (58866455466886), we obtain a palindrome (9999999999999).

The spelling of 68866455466885 in words is "sixty-eight trillion, eight hundred sixty-six billion, four hundred fifty-five million, four hundred sixty-six thousand, eight hundred eighty-five".