2678381923 has 16 divisors (see below), whose sum is σ = 3075275520. Its totient is φ = 2285085600.

The previous prime is 2678381887. The next prime is 2678381957. The reversal of 2678381923 is 3291838762.

It is not a de Polignac number, because 2678381923 - 2²⁹ = 2141511011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2678381983) 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, 1748668 + ... + 1750198.

It is an arithmetic number, because the mean of its divisors is an integer number (192204720).

Almost surely, 2^2678381923 is an apocalyptic number.

2678381923 is a deficient number, since it is larger than the sum of its proper divisors (396893597).

2678381923 is a wasteful number, since it uses less digits than its factorization.

2678381923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2538.

The product of its digits is 870912, while the sum is 49.

The square root of 2678381923 is about 51753.0861205397. The cubic root of 2678381923 is about 1388.7503083935.

The spelling of 2678381923 in words is "two billion, six hundred seventy-eight million, three hundred eighty-one thousand, nine hundred twenty-three".