2678879178 has 24 divisors (see below), whose sum is σ = 5858487648. Its totient is φ = 884613672.

The previous prime is 2678879149. The next prime is 2678879209. The reversal of 2678879178 is 8719788762.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 693526 + ... + 697377.

It is an arithmetic number, because the mean of its divisors is an integer number (244103652).

Almost surely, 2^2678879178 is an apocalyptic number.

2678879178 is an abundant number, since it is smaller than the sum of its proper divisors (3179608470).

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

2678879178 is a wasteful number, since it uses less digits than its factorization.

2678879178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391018 (or 1391015 counting only the distinct ones).

The product of its digits is 18966528, while the sum is 63.

The square root of 2678879178 is about 51757.8900072250. The cubic root of 2678879178 is about 1388.8362458890.

The spelling of 2678879178 in words is "two billion, six hundred seventy-eight million, eight hundred seventy-nine thousand, one hundred seventy-eight".