685065574177 has 8 divisors (see below), whose sum is σ = 701296113056. Its totient is φ = 668848616352.

The previous prime is 685065574139. The next prime is 685065574253. The reversal of 685065574177 is 771475560586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 685065574177 - 2¹¹ = 685065572129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (685065574577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3293148 + ... + 3494989.

It is an arithmetic number, because the mean of its divisors is an integer number (87662014132).

Almost surely, 2^685065574177 is an apocalyptic number.

It is an amenable number.

685065574177 is a deficient number, since it is larger than the sum of its proper divisors (16230538879).

685065574177 is a wasteful number, since it uses less digits than its factorization.

685065574177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6790527.

The product of its (nonzero) digits is 49392000, while the sum is 61.

The spelling of 685065574177 in words is "six hundred eighty-five billion, sixty-five million, five hundred seventy-four thousand, one hundred seventy-seven".