678934439876 has 24 divisors (see below), whose sum is σ = 1481311505856. Its totient is φ = 264519911520.

The previous prime is 678934439873. The next prime is 678934439899.

678934439876 is nontrivially palindromic in base 10.

678934439876 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (678934439873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1102165991 + ... + 1102166606.

It is an arithmetic number, because the mean of its divisors is an integer number (61721312744).

Almost surely, 2^678934439876 is an apocalyptic number.

It is an amenable number.

678934439876 is an abundant number, since it is smaller than the sum of its proper divisors (802377065980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

678934439876 is a wasteful number, since it uses less digits than its factorization.

678934439876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2204332619 (or 2204332617 counting only the distinct ones).

The product of its digits is 1316818944, while the sum is 74.

The spelling of 678934439876 in words is "six hundred seventy-eight billion, nine hundred thirty-four million, four hundred thirty-nine thousand, eight hundred seventy-six".