68645430720882 has 12 divisors (see below), whose sum is σ = 148731766561950. Its totient is φ = 22881810240288.

The previous prime is 68645430720851. The next prime is 68645430720887. The reversal of 68645430720882 is 28802703454686.

68645430720882 is a `hidden beast` number, since 6 + 8 + 6 + 4 + 543 + 0 + 7 + 2 + 0 + 8 + 82 = 666.

It can be written as a sum of positive squares in only one way, i.e., 68510367855801 + 135062865081 = 8277099^2 + 367509^2 .

It is not an unprimeable number, because it can be changed into a prime (68645430720887) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1906817520007 + ... + 1906817520042.

Almost surely, 2^{68645430720882} is an apocalyptic number.

68645430720882 is an abundant number, since it is smaller than the sum of its proper divisors (80086335841068).

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

68645430720882 is a wasteful number, since it uses less digits than its factorization.

68645430720882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3813635040057 (or 3813635040054 counting only the distinct ones).

The product of its (nonzero) digits is 123863040, while the sum is 63.

The spelling of 68645430720882 in words is "sixty-eight trillion, six hundred forty-five billion, four hundred thirty million, seven hundred twenty thousand, eight hundred eighty-two".