2685317620 has 48 divisors (see below), whose sum is σ = 6230504448. Its totient is φ = 966986240.

The previous prime is 2685317581. The next prime is 2685317627. The reversal of 2685317620 is 267135862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2685317627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163876 + ... + 179515.

It is an arithmetic number, because the mean of its divisors is an integer number (129802176).

Almost surely, 2^2685317620 is an apocalyptic number.

2685317620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2685317620 is an abundant number, since it is smaller than the sum of its proper divisors (3545186828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2685317620 is a wasteful number, since it uses less digits than its factorization.

2685317620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343440 (or 343438 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 2685317620 is about 51820.0503666293. The cubic root of 2685317620 is about 1389.9480028166.

The spelling of 2685317620 in words is "two billion, six hundred eighty-five million, three hundred seventeen thousand, six hundred twenty".