2678682049 has 4 divisors (see below), whose sum is σ = 2683804336. Its totient is φ = 2673559764.

The previous prime is 2678682023. The next prime is 2678682053. The reversal of 2678682049 is 9402868762.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2678682049 - 2³¹ = 531198401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2678681987 and 2678682005.

It is not an unprimeable number, because it can be changed into a prime (2678682949) 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 3 ways as a sum of consecutive naturals, for example, 2560359 + ... + 2561404.

It is an arithmetic number, because the mean of its divisors is an integer number (670951084).

Almost surely, 2^2678682049 is an apocalyptic number.

It is an amenable number.

2678682049 is a deficient number, since it is larger than the sum of its proper divisors (5122287).

2678682049 is an equidigital number, since it uses as much as digits as its factorization.

2678682049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5122286.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The square root of 2678682049 is about 51755.9856345138. The cubic root of 2678682049 is about 1388.8021785798.

The spelling of 2678682049 in words is "two billion, six hundred seventy-eight million, six hundred eighty-two thousand, forty-nine".