2678927879 has 2 divisors, whose sum is σ = 2678927880. Its totient is φ = 2678927878.

The previous prime is 2678927807. The next prime is 2678927887. The reversal of 2678927879 is 9787298762.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2678927879 - 2⁸ = 2678927623 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2678923879) 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 as a sum of consecutive naturals, namely, 1339463939 + 1339463940.

It is an arithmetic number, because the mean of its divisors is an integer number (1339463940).

Almost surely, 2^2678927879 is an apocalyptic number.

2678927879 is a deficient number, since it is larger than the sum of its proper divisors (1).

2678927879 is an equidigital number, since it uses as much as digits as its factorization.

2678927879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42674688, while the sum is 65.

The square root of 2678927879 is about 51758.3604744200. The cubic root of 2678927879 is about 1388.8446620088.

The spelling of 2678927879 in words is "two billion, six hundred seventy-eight million, nine hundred twenty-seven thousand, eight hundred seventy-nine".