2685857144 has 16 divisors (see below), whose sum is σ = 5057056800. Its totient is φ = 1337308672.

The previous prime is 2685857137. The next prime is 2685857171. The reversal of 2685857144 is 4417585862.

It is a junction number, because it is equal to n+sod(n) for n = 2685857092 and 2685857101.

It is a congruent number.

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, 700457 + ... + 704280.

It is an arithmetic number, because the mean of its divisors is an integer number (316066050).

Almost surely, 2^2685857144 is an apocalyptic number.

It is an amenable number.

2685857144 is a deficient number, since it is larger than the sum of its proper divisors (2371199656).

2685857144 is a wasteful number, since it uses less digits than its factorization.

2685857144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404982 (or 1404978 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 50.

The square root of 2685857144 is about 51825.2558507915. The cubic root of 2685857144 is about 1390.0410843057.

The spelling of 2685857144 in words is "two billion, six hundred eighty-five million, eight hundred fifty-seven thousand, one hundred forty-four".