6911999999 has 2 divisors, whose sum is σ = 6912000000. Its totient is φ = 6911999998.

The previous prime is 6911999989. The next prime is 6912000001. The reversal of 6911999999 is 9999991196.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6911999999 - 2²⁰ = 6910951423 is a prime.

Together with 6912000001, it forms a pair of twin primes.

It is a Chen prime.

6911999999 is a modest number, since divided by 99999 gives 69119 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6911999959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3455999999 + 3456000000.

It is an arithmetic number, because the mean of its divisors is an integer number (3456000000).

Almost surely, 2^6911999999 is an apocalyptic number.

6911999999 is a deficient number, since it is larger than the sum of its proper divisors (1).

6911999999 is an equidigital number, since it uses as much as digits as its factorization.

6911999999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28697814, while the sum is 71.

The square root of 6911999999 is about 83138.4387572920. The cubic root of 6911999999 is about 1904.8812622700.

The spelling of 6911999999 in words is "six billion, nine hundred eleven million, nine hundred ninety-nine thousand, nine hundred ninety-nine".