2068521336 has 144 divisors (see below), whose sum is σ = 6757873200. Its totient is φ = 559851264.

The previous prime is 2068521319. The next prime is 2068521341. The reversal of 2068521336 is 6331258602.

It is a happy number.

2068521336 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2068521336.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 176260 + ... + 187628.

It is an arithmetic number, because the mean of its divisors is an integer number (46929675).

Almost surely, 2^2068521336 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 2068521336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3378936600).

2068521336 is an abundant number, since it is smaller than the sum of its proper divisors (4689351864).

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

2068521336 is a wasteful number, since it uses less digits than its factorization.

2068521336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11426 (or 11400 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 2068521336 is about 45480.9997251600. Note that the first 3 decimals coincide. The cubic root of 2068521336 is about 1274.1483659966.

Adding to 2068521336 its reverse (6331258602), we get a palindrome (8399779938).

The spelling of 2068521336 in words is "two billion, sixty-eight million, five hundred twenty-one thousand, three hundred thirty-six".