68840681170 has 8 divisors (see below), whose sum is σ = 123913226124. Its totient is φ = 27536272464.

The previous prime is 68840681167. The next prime is 68840681171. The reversal of 68840681170 is 7118604886.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 60630690289 + 8209990881 = 246233^2 + 90609^2 .

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

It is not an unprimeable number, because it can be changed into a prime (68840681171) 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 3 ways as a sum of consecutive naturals, for example, 3442034049 + ... + 3442034068.

Almost surely, 2^68840681170 is an apocalyptic number.

68840681170 is a deficient number, since it is larger than the sum of its proper divisors (55072544954).

68840681170 is a wasteful number, since it uses less digits than its factorization.

68840681170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6884068124.

The product of its (nonzero) digits is 516096, while the sum is 49.

The spelling of 68840681170 in words is "sixty-eight billion, eight hundred forty million, six hundred eighty-one thousand, one hundred seventy".