2685843172 has 12 divisors (see below), whose sum is σ = 4827258940. Its totient is φ = 1306626336.

The previous prime is 2685843169. The next prime is 2685843187. The reversal of 2685843172 is 2713485862.

It can be written as a sum of positive squares in 2 ways, for example, as 1942517476 + 743325696 = 44074^2 + 27264^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9073647 + ... + 9073942.

Almost surely, 2^2685843172 is an apocalyptic number.

It is an amenable number.

2685843172 is a deficient number, since it is larger than the sum of its proper divisors (2141415768).

2685843172 is a wasteful number, since it uses less digits than its factorization.

2685843172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18147630 (or 18147628 counting only the distinct ones).

The product of its digits is 645120, while the sum is 46.

The square root of 2685843172 is about 51825.1210514746. The cubic root of 2685843172 is about 1390.0386739408.

The spelling of 2685843172 in words is "two billion, six hundred eighty-five million, eight hundred forty-three thousand, one hundred seventy-two".