2678026939 has 6 divisors (see below), whose sum is σ = 3115255884. Its totient is φ = 2295451620.

The previous prime is 2678026921. The next prime is 2678026943. The reversal of 2678026939 is 9396208762.

It is not a de Polignac number, because 2678026939 - 2⁵ = 2678026907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2678026969) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27326757 + ... + 27326854.

It is an arithmetic number, because the mean of its divisors is an integer number (519209314).

Almost surely, 2^2678026939 is an apocalyptic number.

2678026939 is a deficient number, since it is larger than the sum of its proper divisors (437228945).

2678026939 is an equidigital number, since it uses as much as digits as its factorization.

2678026939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54653625 (or 54653618 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 52.

The square root of 2678026939 is about 51749.6564143183. The cubic root of 2678026939 is about 1388.6889522047.

The spelling of 2678026939 in words is "two billion, six hundred seventy-eight million, twenty-six thousand, nine hundred thirty-nine".