68766879818125 has 10 divisors (see below), whose sum is σ = 85931093021510. Its totient is φ = 55013503854000.

The previous prime is 68766879818089. The next prime is 68766879818141. The reversal of 68766879818125 is 52181897866786.

It can be written as a sum of positive squares in 5 ways, for example, as 33283818639369 + 35483061178756 = 5769213^2 + 5956766^2 .

It is not a de Polignac number, because 68766879818125 - 2⁴³ = 59970786795917 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 55013503230 + ... + 55013504479.

It is an arithmetic number, because the mean of its divisors is an integer number (8593109302151).

Almost surely, 2^{68766879818125} is an apocalyptic number.

It is an amenable number.

68766879818125 is a deficient number, since it is larger than the sum of its proper divisors (17164213203385).

68766879818125 is an equidigital number, since it uses as much as digits as its factorization.

68766879818125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110027007729 (or 110027007714 counting only the distinct ones).

The product of its digits is 3901685760, while the sum is 82.

The spelling of 68766879818125 in words is "sixty-eight trillion, seven hundred sixty-six billion, eight hundred seventy-nine million, eight hundred eighteen thousand, one hundred twenty-five".