2678359919 has 2 divisors, whose sum is σ = 2678359920. Its totient is φ = 2678359918.

The previous prime is 2678359903. The next prime is 2678359921. The reversal of 2678359919 is 9199538762.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2678359919 - 2⁴ = 2678359903 is a prime.

It is a super-2 number, since 2×2678359919² = 14347223711411373122, which contains 22 as substring.

Together with 2678359921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2678359949) 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 as a sum of consecutive naturals, namely, 1339179959 + 1339179960.

It is an arithmetic number, because the mean of its divisors is an integer number (1339179960).

Almost surely, 2^2678359919 is an apocalyptic number.

2678359919 is a deficient number, since it is larger than the sum of its proper divisors (1).

2678359919 is an equidigital number, since it uses as much as digits as its factorization.

2678359919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7348320, while the sum is 59.

The square root of 2678359919 is about 51752.8735337469. The cubic root of 2678359919 is about 1388.7465053330.

The spelling of 2678359919 in words is "two billion, six hundred seventy-eight million, three hundred fifty-nine thousand, nine hundred nineteen".