678945067229 has 16 divisors (see below), whose sum is σ = 806604039360. Its totient is φ = 563342482560.

The previous prime is 678945067223. The next prime is 678945067237. The reversal of 678945067229 is 922760549876.

It is not a de Polignac number, because 678945067229 - 2⁸ = 678945066973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678945067223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26660687 + ... + 26686140.

It is an arithmetic number, because the mean of its divisors is an integer number (50412752460).

Almost surely, 2^678945067229 is an apocalyptic number.

It is an amenable number.

678945067229 is a deficient number, since it is larger than the sum of its proper divisors (127658972131).

678945067229 is a wasteful number, since it uses less digits than its factorization.

678945067229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53346940.

The product of its (nonzero) digits is 91445760, while the sum is 65.

The spelling of 678945067229 in words is "six hundred seventy-eight billion, nine hundred forty-five million, sixty-seven thousand, two hundred twenty-nine".