6800787861523 has 2 divisors, whose sum is σ = 6800787861524. Its totient is φ = 6800787861522.

The previous prime is 6800787861521. The next prime is 6800787861589. The reversal of 6800787861523 is 3251687870086.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6800787861523 - 2¹ = 6800787861521 is a prime.

Together with 6800787861521, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6800787861521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3400393930761 + 3400393930762.

It is an arithmetic number, because the mean of its divisors is an integer number (3400393930762).

Almost surely, 2^{6800787861523} is an apocalyptic number.

6800787861523 is a deficient number, since it is larger than the sum of its proper divisors (1).

6800787861523 is an equidigital number, since it uses as much as digits as its factorization.

6800787861523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27095040, while the sum is 61.

The spelling of 6800787861523 in words is "six trillion, eight hundred billion, seven hundred eighty-seven million, eight hundred sixty-one thousand, five hundred twenty-three".