6783883891 has 2 divisors, whose sum is σ = 6783883892. Its totient is φ = 6783883890.

The previous prime is 6783883829. The next prime is 6783883907. The reversal of 6783883891 is 1983883876.

6783883891 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6783883891 - 2¹¹ = 6783881843 is a prime.

It is not a weakly prime, because it can be changed into another prime (6783883991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3391941945 + 3391941946.

It is an arithmetic number, because the mean of its divisors is an integer number (3391941946).

Almost surely, 2^6783883891 is an apocalyptic number.

6783883891 is a deficient number, since it is larger than the sum of its proper divisors (1).

6783883891 is an equidigital number, since it uses as much as digits as its factorization.

6783883891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13934592, while the sum is 61.

The square root of 6783883891 is about 82364.3362809414. The cubic root of 6783883891 is about 1893.0385964788.

The spelling of 6783883891 in words is "six billion, seven hundred eighty-three million, eight hundred eighty-three thousand, eight hundred ninety-one".