68407688278810 has 32 divisors (see below), whose sum is σ = 128533422886272. Its totient is φ = 26164018478400.

The previous prime is 68407688278789. The next prime is 68407688278841. The reversal of 68407688278810 is 1887288670486.

It is a super-2 number, since 2×68407688278810² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52525216 + ... + 53811835.

It is an arithmetic number, because the mean of its divisors is an integer number (4016669465196).

Almost surely, 2^{68407688278810} is an apocalyptic number.

68407688278810 is a deficient number, since it is larger than the sum of its proper divisors (60125734607462).

68407688278810 is a wasteful number, since it uses less digits than its factorization.

68407688278810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106339878.

The product of its (nonzero) digits is 462422016, while the sum is 73.

The spelling of 68407688278810 in words is "sixty-eight trillion, four hundred seven billion, six hundred eighty-eight million, two hundred seventy-eight thousand, eight hundred ten".