68345068345 has 16 divisors (see below), whose sum is σ = 82840528080. Its totient is φ = 54125280000.

The previous prime is 68345068327. The next prime is 68345068369. The reversal of 68345068345 is 54386054386.

It can be written as a sum of positive squares in 8 ways, for example, as 24854468409 + 43490599936 = 157653^2 + 208544^2 .

It is not a de Polignac number, because 68345068345 - 2²⁹ = 67808197433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68345068292 and 68345068301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4993171 + ... + 5006839.

It is an arithmetic number, because the mean of its divisors is an integer number (5177533005).

Almost surely, 2^68345068345 is an apocalyptic number.

It is an amenable number.

68345068345 is a deficient number, since it is larger than the sum of its proper divisors (14495459735).

68345068345 is a wasteful number, since it uses less digits than its factorization.

68345068345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23676.

The product of its (nonzero) digits is 8294400, while the sum is 52.

The spelling of 68345068345 in words is "sixty-eight billion, three hundred forty-five million, sixty-eight thousand, three hundred forty-five".