6854758891 has 2 divisors, whose sum is σ = 6854758892. Its totient is φ = 6854758890.

The previous prime is 6854758837. The next prime is 6854758901. The reversal of 6854758891 is 1988574586.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6854758891 is a prime.

It is not a weakly prime, because it can be changed into another prime (6854750891) 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, 3427379445 + 3427379446.

It is an arithmetic number, because the mean of its divisors is an integer number (3427379446).

Almost surely, 2^6854758891 is an apocalyptic number.

6854758891 is a deficient number, since it is larger than the sum of its proper divisors (1).

6854758891 is an equidigital number, since it uses as much as digits as its factorization.

6854758891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19353600, while the sum is 61.

The square root of 6854758891 is about 82793.4713066193. The cubic root of 6854758891 is about 1899.6083117791.

The spelling of 6854758891 in words is "six billion, eight hundred fifty-four million, seven hundred fifty-eight thousand, eight hundred ninety-one".