2678023705 has 24 divisors (see below), whose sum is σ = 3867219720. Its totient is φ = 1773031680.

The previous prime is 2678023693. The next prime is 2678023709. The reversal of 2678023705 is 5073208762.

It can be written as a sum of positive squares in 4 ways, for example, as 926350096 + 1751673609 = 30436^2 + 41853^2 .

It is not a de Polignac number, because 2678023705 - 2⁷ = 2678023577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2678023709) 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 23 ways as a sum of consecutive naturals, for example, 181356 + ... + 195565.

It is an arithmetic number, because the mean of its divisors is an integer number (161134155).

Almost surely, 2^2678023705 is an apocalyptic number.

It is an amenable number.

2678023705 is a deficient number, since it is larger than the sum of its proper divisors (1189196015).

2678023705 is a wasteful number, since it uses less digits than its factorization.

2678023705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376969 (or 376962 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 2678023705 is about 51749.6251677246. The cubic root of 2678023705 is about 1388.6883932084.

The spelling of 2678023705 in words is "two billion, six hundred seventy-eight million, twenty-three thousand, seven hundred five".