6800787861911 has 2 divisors, whose sum is σ = 6800787861912. Its totient is φ = 6800787861910.

The previous prime is 6800787861899. The next prime is 6800787861947. The reversal of 6800787861911 is 1191687870086.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6800787861911 - 2³⁴ = 6783607992727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6800787861961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3400393930955 + 3400393930956.

It is an arithmetic number, because the mean of its divisors is an integer number (3400393930956).

Almost surely, 2^{6800787861911} is an apocalyptic number.

6800787861911 is a deficient number, since it is larger than the sum of its proper divisors (1).

6800787861911 is an equidigital number, since it uses as much as digits as its factorization.

6800787861911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8128512, while the sum is 62.

The spelling of 6800787861911 in words is "six trillion, eight hundred billion, seven hundred eighty-seven million, eight hundred sixty-one thousand, nine hundred eleven".