68819125066 has 16 divisors (see below), whose sum is σ = 109149062400. Its totient is φ = 32452347168.

The previous prime is 68819125057. The next prime is 68819125069. The reversal of 68819125066 is 66052191886.

It is not an unprimeable number, because it can be changed into a prime (68819125069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4052131 + ... + 4069078.

It is an arithmetic number, because the mean of its divisors is an integer number (6821816400).

Almost surely, 2^68819125066 is an apocalyptic number.

68819125066 is a deficient number, since it is larger than the sum of its proper divisors (40329937334).

68819125066 is a wasteful number, since it uses less digits than its factorization.

68819125066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8121453.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 68819125066 in words is "sixty-eight billion, eight hundred nineteen million, one hundred twenty-five thousand, sixty-six".