686280308443 has 2 divisors, whose sum is σ = 686280308444. Its totient is φ = 686280308442.

The previous prime is 686280308437. The next prime is 686280308447. The reversal of 686280308443 is 344803082686.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 686280308443 - 2³³ = 677690373851 is a prime.

It is not a weakly prime, because it can be changed into another prime (686280308447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343140154221 + 343140154222.

It is an arithmetic number, because the mean of its divisors is an integer number (343140154222).

Almost surely, 2^686280308443 is an apocalyptic number.

686280308443 is a deficient number, since it is larger than the sum of its proper divisors (1).

686280308443 is an equidigital number, since it uses as much as digits as its factorization.

686280308443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5308416, while the sum is 52.

The spelling of 686280308443 in words is "six hundred eighty-six billion, two hundred eighty million, three hundred eight thousand, four hundred forty-three".