685410488419 has 2 divisors, whose sum is σ = 685410488420. Its totient is φ = 685410488418.

The previous prime is 685410488317. The next prime is 685410488447. The reversal of 685410488419 is 914884014586.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 685410488419 - 2²⁹ = 684873617507 is a prime.

It is a super-2 number, since 2×685410488419² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (685410483419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342705244209 + 342705244210.

It is an arithmetic number, because the mean of its divisors is an integer number (342705244210).

Almost surely, 2^685410488419 is an apocalyptic number.

685410488419 is a deficient number, since it is larger than the sum of its proper divisors (1).

685410488419 is an equidigital number, since it uses as much as digits as its factorization.

685410488419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8847360, while the sum is 58.

The spelling of 685410488419 in words is "six hundred eighty-five billion, four hundred ten million, four hundred eighty-eight thousand, four hundred nineteen".