68965555869 has 32 divisors (see below), whose sum is σ = 117052704000. Its totient is φ = 39312490752.

The previous prime is 68965555853. The next prime is 68965555873. The reversal of 68965555869 is 96855556986.

68965555869 is a `hidden beast` number, since 6 + 8 + 9 + 6 + 5 + 5 + 558 + 69 = 666.

It is not a de Polignac number, because 68965555869 - 2⁴ = 68965555853 is a prime.

It is a super-2 number, since 2×68965555869² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68965555797 and 68965555806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68965555469) 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 31 ways as a sum of consecutive naturals, for example, 368784 + ... + 523385.

It is an arithmetic number, because the mean of its divisors is an integer number (3657897000).

Almost surely, 2^68965555869 is an apocalyptic number.

It is an amenable number.

68965555869 is a deficient number, since it is larger than the sum of its proper divisors (48087148131).

68965555869 is a wasteful number, since it uses less digits than its factorization.

68965555869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892594 (or 892588 counting only the distinct ones).

The product of its digits is 699840000, while the sum is 72.

The spelling of 68965555869 in words is "sixty-eight billion, nine hundred sixty-five million, five hundred fifty-five thousand, eight hundred sixty-nine".