68708953635489 has 24 divisors (see below), whose sum is σ = 101287088825832. Its totient is φ = 44866927123200.

The previous prime is 68708953635461. The next prime is 68708953635499. The reversal of 68708953635489 is 98453635980786.

68708953635489 is a `hidden beast` number, since 6 + 8 + 7 + 0 + 8 + 9 + 5 + 3 + 63 + 548 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 28091696025600 + 40617257609889 = 5300160^2 + 6373167^2 .

It is not a de Polignac number, because 68708953635489 - 2⁵ = 68708953635457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68708953635419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119550202 + ... + 120123555.

It is an arithmetic number, because the mean of its divisors is an integer number (4220295367743).

Almost surely, 2^{68708953635489} is an apocalyptic number.

It is an amenable number.

68708953635489 is a deficient number, since it is larger than the sum of its proper divisors (32578135190343).

68708953635489 is a wasteful number, since it uses less digits than its factorization.

68708953635489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239674417 (or 239674414 counting only the distinct ones).

The product of its (nonzero) digits is 9405849600, while the sum is 81.

The spelling of 68708953635489 in words is "sixty-eight trillion, seven hundred eight billion, nine hundred fifty-three million, six hundred thirty-five thousand, four hundred eighty-nine".