685919114203 has 2 divisors, whose sum is σ = 685919114204. Its totient is φ = 685919114202.

The previous prime is 685919114161. The next prime is 685919114219. The reversal of 685919114203 is 302411919586.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-685919114203 is a prime.

It is not a weakly prime, because it can be changed into another prime (685919114003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342959557101 + 342959557102.

It is an arithmetic number, because the mean of its divisors is an integer number (342959557102).

Almost surely, 2^685919114203 is an apocalyptic number.

685919114203 is a deficient number, since it is larger than the sum of its proper divisors (1).

685919114203 is an equidigital number, since it uses as much as digits as its factorization.

685919114203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 49.

The spelling of 685919114203 in words is "six hundred eighty-five billion, nine hundred nineteen million, one hundred fourteen thousand, two hundred three".