2678940875 has 16 divisors (see below), whose sum is σ = 3600498720. Its totient is φ = 1978293600.

The previous prime is 2678940863. The next prime is 2678940877. The reversal of 2678940875 is 5780498762.

It is not a de Polignac number, because 2678940875 - 2²⁰ = 2677892299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2678940875.

It is not an unprimeable number, because it can be changed into a prime (2678940877) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 822665 + ... + 825914.

It is an arithmetic number, because the mean of its divisors is an integer number (225031170).

Almost surely, 2^2678940875 is an apocalyptic number.

2678940875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2678940875 is a deficient number, since it is larger than the sum of its proper divisors (921557845).

2678940875 is a wasteful number, since it uses less digits than its factorization.

2678940875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648607 (or 1648597 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 56.

The square root of 2678940875 is about 51758.4860192027. The cubic root of 2678940875 is about 1388.8469078570.

The spelling of 2678940875 in words is "two billion, six hundred seventy-eight million, nine hundred forty thousand, eight hundred seventy-five".