6849181919 has 2 divisors, whose sum is σ = 6849181920. Its totient is φ = 6849181918.

The previous prime is 6849181909. The next prime is 6849181951. The reversal of 6849181919 is 9191819486.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6849181919 - 2⁴ = 6849181903 is a prime.

It is a super-2 number, since 2×6849181919² = 93822585919113045122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6849181909) 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, 3424590959 + 3424590960.

It is an arithmetic number, because the mean of its divisors is an integer number (3424590960).

Almost surely, 2^6849181919 is an apocalyptic number.

6849181919 is a deficient number, since it is larger than the sum of its proper divisors (1).

6849181919 is an equidigital number, since it uses as much as digits as its factorization.

6849181919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 56.

The square root of 6849181919 is about 82759.7844306037. The cubic root of 6849181919 is about 1899.0930037568.

The spelling of 6849181919 in words is "six billion, eight hundred forty-nine million, one hundred eighty-one thousand, nine hundred nineteen".