2686684840423 has 2 divisors, whose sum is σ = 2686684840424. Its totient is φ = 2686684840422.

The previous prime is 2686684840337. The next prime is 2686684840429. The reversal of 2686684840423 is 3240484866862.

It is a happy number.

2686684840423 is digitally balanced in base 2, 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 2686684840423 - 2⁹ = 2686684839911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2686684840429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1343342420211 + 1343342420212.

It is an arithmetic number, because the mean of its divisors is an integer number (1343342420212).

Almost surely, 2^{2686684840423} is an apocalyptic number.

2686684840423 is a deficient number, since it is larger than the sum of its proper divisors (1).

2686684840423 is an equidigital number, since it uses as much as digits as its factorization.

2686684840423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84934656, while the sum is 61.

The spelling of 2686684840423 in words is "two trillion, six hundred eighty-six billion, six hundred eighty-four million, eight hundred forty thousand, four hundred twenty-three".