685613058271 has 8 divisors (see below), whose sum is σ = 689478257520. Its totient is φ = 681748247808.

The previous prime is 685613058241. The next prime is 685613058287. The reversal of 685613058271 is 172850316586.

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 685613058271 - 2¹³ = 685613050079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685613058241) 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, 3901615 + ... + 4073551.

It is an arithmetic number, because the mean of its divisors is an integer number (86184782190).

Almost surely, 2^685613058271 is an apocalyptic number.

685613058271 is a deficient number, since it is larger than the sum of its proper divisors (3865199249).

685613058271 is a wasteful number, since it uses less digits than its factorization.

685613058271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194393.

The product of its (nonzero) digits is 2419200, while the sum is 52.

The spelling of 685613058271 in words is "six hundred eighty-five billion, six hundred thirteen million, fifty-eight thousand, two hundred seventy-one".