2668678404 has 24 divisors (see below), whose sum is σ = 7116475968. Its totient is φ = 762479520.

The previous prime is 2668678403. The next prime is 2668678409. The reversal of 2668678404 is 4048768662.

It is not an unprimeable number, because it can be changed into a prime (2668678403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15884907 + ... + 15885074.

It is an arithmetic number, because the mean of its divisors is an integer number (296519832).

Almost surely, 2^2668678404 is an apocalyptic number.

It is an amenable number.

2668678404 is an abundant number, since it is smaller than the sum of its proper divisors (4447797564).

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

2668678404 is a wasteful number, since it uses less digits than its factorization.

2668678404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31769995 (or 31769993 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 51.

The square root of 2668678404 is about 51659.2528401254. The cubic root of 2668678404 is about 1387.0711762379.

The spelling of 2668678404 in words is "two billion, six hundred sixty-eight million, six hundred seventy-eight thousand, four hundred four".