6711339991 has 2 divisors, whose sum is σ = 6711339992. Its totient is φ = 6711339990.

The previous prime is 6711339983. The next prime is 6711340033. The reversal of 6711339991 is 1999331176.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6711339991 - 2³ = 6711339983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6711339191) 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, 3355669995 + 3355669996.

It is an arithmetic number, because the mean of its divisors is an integer number (3355669996).

Almost surely, 2^6711339991 is an apocalyptic number.

6711339991 is a deficient number, since it is larger than the sum of its proper divisors (1).

6711339991 is an equidigital number, since it uses as much as digits as its factorization.

6711339991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 275562, while the sum is 49.

The square root of 6711339991 is about 81922.7684529765. The cubic root of 6711339991 is about 1886.2666231811.

The spelling of 6711339991 in words is "six billion, seven hundred eleven million, three hundred thirty-nine thousand, nine hundred ninety-one".