685950682603 has 2 divisors, whose sum is σ = 685950682604. Its totient is φ = 685950682602.

The previous prime is 685950682559. The next prime is 685950682609. The reversal of 685950682603 is 306286059586.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-685950682603 is a prime.

It is not a weakly prime, because it can be changed into another prime (685950682609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342975341301 + 342975341302.

It is an arithmetic number, because the mean of its divisors is an integer number (342975341302).

Almost surely, 2^685950682603 is an apocalyptic number.

685950682603 is a deficient number, since it is larger than the sum of its proper divisors (1).

685950682603 is an equidigital number, since it uses as much as digits as its factorization.

685950682603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18662400, while the sum is 58.

The spelling of 685950682603 in words is "six hundred eighty-five billion, nine hundred fifty million, six hundred eighty-two thousand, six hundred three".