2685604231 has 4 divisors (see below), whose sum is σ = 2685927712. Its totient is φ = 2685280752.

The previous prime is 2685604193. The next prime is 2685604237. The reversal of 2685604231 is 1324065862.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2685604231 - 2¹⁷ = 2685473159 is a prime.

It is a super-2 number, since 2×2685604231² = 14424940171130202722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2685604237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148950 + ... + 166003.

It is an arithmetic number, because the mean of its divisors is an integer number (671481928).

Almost surely, 2^2685604231 is an apocalyptic number.

2685604231 is a deficient number, since it is larger than the sum of its proper divisors (323481).

2685604231 is an equidigital number, since it uses as much as digits as its factorization.

2685604231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323480.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 2685604231 is about 51822.8157378582. The cubic root of 2685604231 is about 1389.9974519906.

The spelling of 2685604231 in words is "two billion, six hundred eighty-five million, six hundred four thousand, two hundred thirty-one".