2678878343 has 16 divisors (see below), whose sum is σ = 3008586240. Its totient is φ = 2370326400.

The previous prime is 2678878339. The next prime is 2678878439. The reversal of 2678878343 is 3438788762.

It is a cyclic number.

It is not a de Polignac number, because 2678878343 - 2² = 2678878339 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 (2678878313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10658 + ... + 73968.

It is an arithmetic number, because the mean of its divisors is an integer number (188036640).

Almost surely, 2^2678878343 is an apocalyptic number.

2678878343 is a deficient number, since it is larger than the sum of its proper divisors (329707897).

2678878343 is a wasteful number, since it uses less digits than its factorization.

2678878343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63478.

The product of its digits is 10838016, while the sum is 56.

The square root of 2678878343 is about 51757.8819408213. The cubic root of 2678878343 is about 1388.8361015901.

The spelling of 2678878343 in words is "two billion, six hundred seventy-eight million, eight hundred seventy-eight thousand, three hundred forty-three".