2685545244 has 72 divisors (see below), whose sum is σ = 6918213120. Its totient is φ = 878137632.

The previous prime is 2685545227. The next prime is 2685545279. The reversal of 2685545244 is 4425455862.

2685545244 is a `hidden beast` number, since 2 + 6 + 8 + 554 + 52 + 44 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2685545244.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1288227 + ... + 1290309.

Almost surely, 2^2685545244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2685545244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3459106560).

2685545244 is an abundant number, since it is smaller than the sum of its proper divisors (4232667876).

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

2685545244 is a wasteful number, since it uses less digits than its factorization.

2685545244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2759 (or 2754 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 45.

The square root of 2685545244 is about 51822.2466128206. The cubic root of 2685545244 is about 1389.9872752143.

The spelling of 2685545244 in words is "two billion, six hundred eighty-five million, five hundred forty-five thousand, two hundred forty-four".