68968786999 has 32 divisors (see below), whose sum is σ = 83484241920. Its totient is φ = 55701043200.

The previous prime is 68968786987. The next prime is 68968787029. The reversal of 68968786999 is 99968786986.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 68968786999 - 2⁹ = 68968786487 is a prime.

It is a super-2 number, since 2×68968786999² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68968786199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3874279 + ... + 3892039.

It is an arithmetic number, because the mean of its divisors is an integer number (2608882560).

Almost surely, 2^68968786999 is an apocalyptic number.

68968786999 is a deficient number, since it is larger than the sum of its proper divisors (14515454921).

68968786999 is a wasteful number, since it uses less digits than its factorization.

68968786999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18151.

The product of its digits is 5079158784, while the sum is 85.

The spelling of 68968786999 in words is "sixty-eight billion, nine hundred sixty-eight million, seven hundred eighty-six thousand, nine hundred ninety-nine".