685073876041 has 4 divisors (see below), whose sum is σ = 685131617232. Its totient is φ = 685016134852.

The previous prime is 685073876033. The next prime is 685073876119. The reversal of 685073876041 is 140678370586.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 685073876041 - 2³ = 685073876033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (685073576041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28852795 + ... + 28876528.

It is an arithmetic number, because the mean of its divisors is an integer number (171282904308).

Almost surely, 2^685073876041 is an apocalyptic number.

It is an amenable number.

685073876041 is a deficient number, since it is larger than the sum of its proper divisors (57741191).

685073876041 is a wasteful number, since it uses less digits than its factorization.

685073876041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57741190.

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 685073876041 in words is "six hundred eighty-five billion, seventy-three million, eight hundred seventy-six thousand, forty-one".