2681978108 has 24 divisors (see below), whose sum is σ = 4864887552. Its totient is φ = 1292862384.

The previous prime is 2681978071. The next prime is 2681978111. The reversal of 2681978108 is 8018791862.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93866 + ... + 119057.

It is an arithmetic number, because the mean of its divisors is an integer number (202703648).

Almost surely, 2^2681978108 is an apocalyptic number.

It is an amenable number.

2681978108 is a deficient number, since it is larger than the sum of its proper divisors (2182909444).

2681978108 is a wasteful number, since it uses less digits than its factorization.

2681978108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213041 (or 213039 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 50.

The square root of 2681978108 is about 51787.8181428799. The cubic root of 2681978108 is about 1389.3715752189.

The spelling of 2681978108 in words is "two billion, six hundred eighty-one million, nine hundred seventy-eight thousand, one hundred eight".