68351211009 has 48 divisors (see below), whose sum is σ = 104008544640. Its totient is φ = 43170462720.

The previous prime is 68351210989. The next prime is 68351211011. The reversal of 68351211009 is 90011215386.

It is not a de Polignac number, because 68351211009 - 2²⁷ = 68216993281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68351211209) 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 47 ways as a sum of consecutive naturals, for example, 13261777 + ... + 13266929.

It is an arithmetic number, because the mean of its divisors is an integer number (2166844680).

Almost surely, 2^68351211009 is an apocalyptic number.

68351211009 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

68351211009 is a deficient number, since it is larger than the sum of its proper divisors (35657333631).

68351211009 is a wasteful number, since it uses less digits than its factorization.

68351211009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5782 (or 5779 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 68351211009 in words is "sixty-eight billion, three hundred fifty-one million, two hundred eleven thousand, nine".