68203871682 has 16 divisors (see below), whose sum is σ = 139310036352. Its totient is φ = 22250908400.

The previous prime is 68203871663. The next prime is 68203871707. The reversal of 68203871682 is 28617830286.

It is a happy number.

It is a super-2 number, since 2×68203871682² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 120928569 + ... + 120929132.

It is an arithmetic number, because the mean of its divisors is an integer number (8706877272).

Almost surely, 2^68203871682 is an apocalyptic number.

68203871682 is an abundant number, since it is smaller than the sum of its proper divisors (71106164670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68203871682 is a wasteful number, since it uses less digits than its factorization.

68203871682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241857753.

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 68203871682 in words is "sixty-eight billion, two hundred three million, eight hundred seventy-one thousand, six hundred eighty-two".