2068351720 has 16 divisors (see below), whose sum is σ = 4653791460. Its totient is φ = 827340672.

The previous prime is 2068351697. The next prime is 2068351721. The reversal of 2068351720 is 271538602.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1670029956 + 398321764 = 40866^2 + 19958^2 .

It is not an unprimeable number, because it can be changed into a prime (2068351721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25854357 + ... + 25854436.

Almost surely, 2^2068351720 is an apocalyptic number.

2068351720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2068351720 is an abundant number, since it is smaller than the sum of its proper divisors (2585439740).

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

2068351720 is a wasteful number, since it uses less digits than its factorization.

2068351720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51708804 (or 51708800 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 2068351720 is about 45479.1349961716. The cubic root of 2068351720 is about 1274.1135388872.

The spelling of 2068351720 in words is "two billion, sixty-eight million, three hundred fifty-one thousand, seven hundred twenty".