678334500129 has 24 divisors (see below), whose sum is σ = 1070615679616. Its totient is φ = 379487829600.

The previous prime is 678334500121. The next prime is 678334500131. The reversal of 678334500129 is 921005433876.

It is not a de Polignac number, because 678334500129 - 2³ = 678334500121 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (678334500121) 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, 71867977 + ... + 71877414.

It is a 1-persistent number, because it is pandigital, but 2⋅678334500129 = 1356669000258 is not.

Almost surely, 2^678334500129 is an apocalyptic number.

It is an amenable number.

678334500129 is a deficient number, since it is larger than the sum of its proper divisors (392281179487).

678334500129 is a wasteful number, since it uses less digits than its factorization.

678334500129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143745429 (or 143745418 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 678334500129 in words is "six hundred seventy-eight billion, three hundred thirty-four million, five hundred thousand, one hundred twenty-nine".