6942678419 has 2 divisors, whose sum is σ = 6942678420. Its totient is φ = 6942678418.

The previous prime is 6942678389. The next prime is 6942678443. The reversal of 6942678419 is 9148762496.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6942678419 - 2²⁰ = 6941629843 is a prime.

It is a super-2 number, since 2×6942678419² = 96401567259296679122, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (6942678469) 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, 3471339209 + 3471339210.

It is an arithmetic number, because the mean of its divisors is an integer number (3471339210).

Almost surely, 2^6942678419 is an apocalyptic number.

6942678419 is a deficient number, since it is larger than the sum of its proper divisors (1).

6942678419 is an equidigital number, since it uses as much as digits as its factorization.

6942678419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5225472, while the sum is 56.

The square root of 6942678419 is about 83322.7365069103. The cubic root of 6942678419 is about 1907.6953296524.

The spelling of 6942678419 in words is "six billion, nine hundred forty-two million, six hundred seventy-eight thousand, four hundred nineteen".